152-552: The American frontier , also known as the Old West , and popularly known as the Wild West , encompasses the geography, history, folklore, and culture associated with the forward wave of American expansion in mainland North America that began with European colonial settlements in the early 17th century and ended with the admission of the last few contiguous western territories as states in 1912. This era of massive migration and settlement
304-494: A crucial role in national expansion. It facilitated expansion into the West by creating an inexpensive, fast, convenient communication system. Letters from early settlers provided information and boosterism to encourage increased migration to the West, helped scattered families stay in touch and provide neutral help, assisted entrepreneurs to find business opportunities, and made possible regular commercial relationships between merchants and
456-536: A dense population. Most of the highest summits of the Rocky Mountains are in Colorado , with that state having an average elevation in excess of 2,000 metres (6,600 ft). Public parks and forest lands protect much of the mountain range, and they are popular tourist destinations, especially for hiking, camping, mountaineering, fishing, hunting, mountain biking, snowmobiling, skiing, and snowboarding. The name of
608-533: A few thousand French migrated to Canada; these habitants settled in villages along the St. Lawrence River , building communities that remained stable for long stretches. Although French fur traders ranged widely through the Great Lakes and midwest region, they seldom settled down. French settlement was limited to a few very small villages such as Kaskaskia, Illinois as well as a larger settlement around New Orleans . In what
760-443: A few years, the pioneer added hogs, sheep, and cattle, and perhaps acquired a horse. Homespun clothing replaced the animal skins. The more restless pioneers grew dissatisfied with over civilized life and uprooted themselves again to move 50 or a hundred miles (80 or 160 km) further west. The land policy of the new nation was conservative, paying special attention to the needs of the settled East. The goals sought by both parties in
912-420: A frontier of settlement, but at present the unsettled area has been so broken into by isolated bodies of settlement that there can hardly be said to be a frontier line. In the discussion of its extent, its westward movement, etc., it can not, therefore, any longer have a place in the census reports." Despite this, the later 1900 U.S. census continued to show the westward frontier line, and his successors continued
1064-594: A head in 1860 and 1861, when the governments of the southern states proclaimed their secession from the country and formed the Confederate States of America . The American Civil War led to the defeat of the Confederacy in 1865 and the eventual readmission of the states to the United States Congress . The cultural endeavor and pursuit of manifest destiny provided a strong impetus for westward expansion in
1216-456: A line of settlement. Theorist Frederick Jackson Turner went deeper, arguing that the frontier was the scene of a defining process of American civilization: "The frontier," he asserted, "promoted the formation of a composite nationality for the American people." He theorized it was a process of development: "This perennial rebirth, this fluidity of American life, this expansion westward...furnish[es]
1368-523: A mixture of white pine, fir, and spruce that appear as shrub-like krummholz . Finally, rivers and canyons can create a unique forest zone in more arid parts of the mountain range. The Rocky Mountains are an important habitat for a great deal of well-known wildlife, such as wolves , elk , moose , mule and white-tailed deer , pronghorn , mountain goats , bighorn sheep , badgers , black bears , grizzly bears , coyotes , lynxes , cougars , and wolverines . North America's largest herds of elk are in
1520-467: A one-room log cabin. The main food supply at first came from hunting deer, turkeys, and other abundant game. Clad in typical frontier garb, leather breeches, moccasins, fur cap, and hunting shirt, and girded by a belt from which hung a hunting knife and a shot pouch—all homemade—the pioneer presented a unique appearance. In a short time he opened in the woods a patch, or clearing, on which he grew corn, wheat, flax, tobacco, and other products, even fruit. In
1672-779: A party of 20 soldiers to find the headwaters of the Mississippi. He later explored the Red and Arkansas Rivers in Spanish territory, eventually reaching the Rio Grande . On his return, Pike sighted the peak in Colorado named after him . Major Stephen Harriman Long (1784–1864) led the Yellowstone and Missouri expeditions of 1819–1820, but his categorizing in 1823 of the Great Plains as arid and useless led to
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#17330854831911824-468: A principal trading center for Mississippi River traffic and inland commerce but remained under Spanish control until 1803. Thomas Jefferson thought of himself as a man of the frontier and was keenly interested in expanding and exploring the West. Jefferson's Louisiana Purchase of 1803 doubled the size of the nation at the cost of $ 15 million, or about $ 0.04 per acre ($ 305 million in 2023 dollars, less than 42 cents per acre). Federalists opposed
1976-526: A profitable monopoly; he left the business as a multi-millionaire in 1834. As the frontier moved west, trappers and hunters moved ahead of settlers, searching out new supplies of beaver and other skins for shipment to Europe. The hunters were the first Europeans in much of the Old West and they formed the first working relationships with the Native Americans in the West. They added extensive knowledge of
2128-431: A relatively flat terrain. The Tetons and other north-central ranges contain folded and faulted rocks of Paleozoic and Mesozoic age draped above cores of Proterozoic and Archean igneous and metamorphic rocks ranging in age from 1.2 billion (e.g., Tetons) to more than 3.3 billion years ( Beartooth Mountains ). There are a wide range of environmental factors in the Rocky Mountains. The Rockies range in latitude between
2280-402: A salutary restraint upon the tribes, who would feel that any foray by their warriors upon the white settlements would meet with prompt retaliation upon their own homes. There was a debate at the time about the best size for the forts with Jefferson Davis , Winfield Scott , and Thomas Jesup supporting forts that were larger but fewer in number than Floyd. Floyd's plan was more expensive but had
2432-795: A similar relationship to tourism promotions by the Great Northern Railway . While settlers filled the valleys and mining towns, conservation and preservation ethics began to take hold. U.S. President Benjamin Harrison established several forest reserves in the Rocky Mountains in 1891–1892. In 1905, U.S. President Theodore Roosevelt extended the Medicine Bow Forest Reserve to include the area now managed as Rocky Mountain National Park . Economic development began to center on mining, forestry , agriculture, and recreation , as well as on
2584-433: A sizable claim by Virginia. Of the three, only Connecticut seriously pursued its claims, while Virginia is considered to have had the most legitimate claim to the vast northwest, dividing it into counties and maintaining some limited control. The entirety of the new United States was claimed by Great Britain, including Machias Seal Island and North Rock , two small islands off the northeast coast which remain disputed up to
2736-562: A spirit of nationalism and providing a necessary infrastructure. The army early on assumed the mission of protecting settlers along with the Westward Expansion Trails , a policy that was described by U.S. Secretary of War John B. Floyd in 1857: A line of posts running parallel without frontier, but near to the Indians' usual habitations, placed at convenient distances and suitable positions, and occupied by infantry, would exercise
2888-674: A storekeeper, a minister, and perhaps a doctor; and there were several landless laborers. All the rest were farmers. In the South, frontier areas that lacked transportation, such as the Appalachian Mountains region, remained based on subsistence farming and resembled the egalitarianism of their northern counterparts, although they had a larger upper-class of slaveowners. North Carolina was representative. However, frontier areas of 1700 that had good river connections were increasingly transformed into plantation agriculture. Rich men came in, bought up
3040-619: Is ᐊᓭᓂᐓᒉ Aseniwuche . The Rocky Mountains are the easternmost portion of the expansive North American Cordillera . They are often defined as stretching from the Liard River in British Columbia south to the headwaters of the Pecos River , a tributary of the Rio Grande , in New Mexico. The Rockies vary in width from 110 to 480 kilometres (70 to 300 miles). The Rocky Mountains contain
3192-509: Is famous for classifying and painting in minute details 500 species of birds, published in Birds of America . The most famous of the explorers was John Charles Frémont (1813–1890), an Army officer in the Corps of Topographical Engineers. He displayed a talent for exploration and a genius at self-promotion that gave him the sobriquet of "Pathmarker of the West" and led him to the presidential nomination of
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#17330854831913344-627: Is natural gas that arises from coal, either through bacterial action or through exposure to high temperature. Coalbed methane supplies 7 percent of the natural gas used in the U.S. The largest coalbed methane sources in the Rocky Mountains are in the San Juan Basin in New Mexico and Colorado and the Powder River Basin in Wyoming. These two basins are estimated to contain 38 trillion cubic feet of gas. Coalbed methane can be recovered by dewatering
3496-694: Is no single monolithic ecosystem for the entire Rocky Mountain Range. Instead, ecologists divide the Rockies into a number of biotic zones . Each zone is defined by whether it can support trees and the presence of one or more indicator species . Two zones that do not support trees are the Plains and the Alpine tundra . The Great Plains lie to the east of the Rockies and is characterized by prairie grasses (below roughly 550 m or 1,800 ft). Alpine tundra occurs in regions above
3648-522: Is now New York state the Dutch set up fur trading posts in the Hudson River valley, followed by large grants of land to rich landowning patroons who brought in tenant farmers who created compact, permanent villages. They created a dense rural settlement in upstate New York, but they did not push westward. Areas in the north that were in the frontier stage by 1700 generally had poor transportation facilities, so
3800-753: Is so named because water falling on the mountain reaches not only the Atlantic and Pacific but Hudson Bay as well. Farther north in Alberta, the Athabasca and other rivers feed the basin of the Mackenzie River , which has its outlet on the Beaufort Sea of the Arctic Ocean. Human population is not very dense in the Rockies, with an average of four people per square kilometer and few cities with over 50,000 people. However,
3952-503: The 1890 U.S. Census . His successors however continued the practice until the 1920 Census . Others, including the Library of Congress and University of Oxford , often cite differing points reaching into the early 1900s; typically within the first two decades before American entry into World War I . A period known as "The Western Civil War of Incorporation" lasted from the 1850s to 1919. This period includes historical events synonymous with
4104-647: The 49th parallel north as the international boundary west from Lake of the Woods to the "Stony Mountains"; the UK and the US agreed to what has since been described as "joint occupancy" of lands further west to the Pacific Ocean. Resolution of the territorial and treaty issues, the Oregon dispute , was deferred until a later time. In 1819, Spain ceded their rights north of the 42nd Parallel to
4256-479: The Alberta–British Columbia foothills forests . The status of most species in the Rocky Mountains is unknown, due to incomplete information. European-American settlement of the mountains has adversely impacted native species. Examples of some species that have declined include western toads , greenback cutthroat trout , white sturgeon , white-tailed ptarmigan , trumpeter swan , and bighorn sheep. In
4408-539: The Apache , Arapaho , Bannock , Blackfoot , Cheyenne , Coeur d'Alene , Kalispel , Crow Nation , Flathead , Shoshone , Sioux , Ute , Kutenai (Ktunaxa in Canada), Sekani , Dunne-za , and others. Paleo-Indians hunted the now-extinct mammoth and ancient bison (an animal 20% larger than modern bison) in the foothills and valleys of the mountains. Like the modern tribes that followed them, Paleo-Indians probably migrated to
4560-583: The Canadian Pacific Railway eventually followed the Kicking Horse and Rogers Passes to the Pacific Ocean. Canadian railway officials also convinced Parliament to set aside vast areas of the Canadian Rockies as Jasper , Banff , Yoho , and Waterton Lakes National Parks , laying the foundation for a tourism industry which thrives to this day. Glacier National Park (MT) was established with
4712-503: The Climax mine, near Leadville, Colorado , was the largest producer of molybdenum in the world. Molybdenum is used in heat-resistant steel in such things as cars and planes. The Climax mine employed over 3,000 workers. The Coeur d'Alene mine of northern Idaho produces silver, lead, and zinc. Canada's largest coal mines are near Fernie, British Columbia and Sparwood , British Columbia; additional coal mines exist near Hinton, Alberta , and in
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4864-731: The Columbia District for Britain. The party crossed the Rockies into the Columbia Valley , a region of the Rocky Mountain Trench near present-day Radium Hot Springs , British Columbia, then traveled south. Despite such efforts, in 1846, Britain ceded all claim to Columbia District lands south of the 49th parallel to the United States; as resolution to the Oregon boundary dispute by the Oregon Treaty . Thousands passed through
5016-877: The Front Range of Colorado, the Wind River Range and Big Horn Mountains of Wyoming , the Absaroka - Beartooth ranges and Rocky Mountain Front of Montana and the Clark Range of Alberta . Central ranges of the Rockies include the La Sal Range along the Utah -Colorado border, the Abajo Mountains and Henry Mountains of Southeastern Utah, the Uinta Range of Utah and Wyoming, and
5168-548: The Laramide orogeny from between 80 and 55 Ma. For the Canadian Rockies, the mountain building is analogous to pushing a rug on a hardwood floor: the rug bunches up and forms wrinkles (mountains). In Canada, the terranes and subduction are the foot pushing the rug, the ancestral rocks are the rug, and the Canadian Shield in the middle of the continent is the hardwood floor. Further south, an unusual subduction may have caused
5320-797: The Liard River and east of the Trench , or in the northeastern foothills of the Brooks Range / British Mountains that face the Beaufort Sea coasts between the Canning River and the Firth River across the Alaska - Yukon border. Its southernmost point is near the Albuquerque area adjacent to the Rio Grande rift and north of the Sandia–Manzano Mountain Range . Being the easternmost portion of
5472-698: The Midwest and American South , though no longer considered "western", have a frontier heritage along with the modern western states. Richard W. Slatta, in his view of the frontier, writes that "historians sometimes define the American West as lands west of the 98th meridian or 98° west longitude ," and that other definitions of the region "include all lands west of the Mississippi or Missouri rivers." Key: States Territories Disputed areas Other countries In
5624-727: The Muskwa Ranges , Hart Ranges (collectively called the Northern Rockies ) and Continental Ranges . Other more northerly mountain ranges of the eastern Canadian Cordillera continue beyond the Liard River valley, including the Selwyn , Mackenzie and Richardson Mountains in Yukon as well as the British Mountains / Brooks Range in Alaska , but those are not officially recognized as part of
5776-648: The North American Cordillera , the Rockies are distinct from the tectonically younger Cascade Range and Sierra Nevada , which both lie farther to its west. The Rockies formed 55 million to 80 million years ago during the Laramide orogeny , in which a number of plates began sliding underneath the North American plate . The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America. Since then, further tectonic activity and erosion by glaciers have sculpted
5928-653: The Northern Mariana Islands became a U.S. territory, the Marshall Islands , Federated States of Micronesia , and Palau emerged from the trust territory as independent nations. The last major international change was the acquisition in 1904, and return to Panama in 1979, of the Panama Canal Zone , an unincorporated US territory which controlled the Panama Canal . The final cession of formal control over
6080-660: The Pinedale Glaciation , which perhaps remained at full glaciation until 15,000–20,000 years ago. All of these geological processes exposed a complex set of rocks at the surface. For example, volcanic rock from the Paleogene and Neogene periods (66 million – 2.6 million years ago) occurs in the San Juan Mountains and in other areas. Millennia of severe erosion in the Wyoming Basin transformed intermountain basins into
6232-411: The Proclamation Line to the Mississippi River . This land was organized into territories and then states, though there remained some conflict with the sea-to-sea grants claimed by some of the original colonies. In time, these grants were ceded to the federal government. The first great expansion of the country came with the Louisiana Purchase of 1803, which doubled the country's territory, although
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6384-486: The Public Land Strip , or sometimes "No Man's Land". Atafu , Birnie Island , Butaritari , Caroline Island , Fanning Island , Flint Island , Gardner Island , Canton Island , Kingman Reef , Manihiki , Marakei , Nukunono , Palmyra Atoll , Penrhyn , Pukapuka , Rakahanga , Swains Island , Sydney Island , Vostok Island , and Washington Island were all claimed under the Guano Islands Act . Many additional islands were listed as bonded on this date, but based on
6536-463: The Rio Grande (as by flooding), for the border to be altered to follow the new course. The sudden changes often created bancos (land surrounded by bends in the river that became segregated from either country by a cutoff, often due to rapid accretion or avulsion of the alluvial channel), especially in the Lower Rio Grande Valley. When these bancos are created, the International Boundary and Water Commission investigates if land previously belonging to
6688-420: The Tennessee River ; it is unknown how official or strong these claims were, and they are not mapped as they are in conflict with the other Spanish claim involving the border of West Florida. The acquisition expanded the United States to the whole of the Mississippi River basin, but the extent of what constituted Louisiana in the south was disputed with Spain : the United States claimed the purchase included
6840-400: The Teton Range of Wyoming and Idaho. The western edge of the Rockies includes ranges such as the Wasatch near Salt Lake City , the San Juan Mountains of New Mexico and Colorado, the Bitterroots along the Idaho-Montana border, and the Sawtooths in central Idaho. The Great Basin and Columbia River Plateau separate these subranges from distinct ranges further to the west. In Canada,
6992-401: The Treaty of Paris of 1898 had excluded these islands; the new treaty simply ceded "any and all islands belonging to the Philippine Archipelago". The United States recognized the sovereignty of Tuvalu over Funafuti , Nukufetau , Nukulaelae , and Niulakita . The Banco Convention of 1905 between the United States and Mexico allowed, in the event of sudden changes in the course of
7144-537: The West Coast . Enormous popular attention was focused on the Western United States (especially the Southwest ) in the second half of the 19th century and the early 20th century, from the 1850s to the 1910s. Such media typically exaggerated the romance, anarchy, and chaotic violence of the period for greater dramatic effect. This inspired the Western genre of film, along with television shows , novels , comic books , video games , children's toys, and costumes. As defined by Hine and Faragher, "frontier history tells
7296-470: The annexation of Hawaii in 1898, after the overthrow of its government five years previously. Alaska , the last major acquisition in North America, was purchased from Russia in 1867. Support for the independence of Cuba from the Spanish Empire , and the sinking of the USS Maine , led to the Spanish–American War in 1898, in which the United States gained Puerto Rico , Guam , and the Philippines , and occupied Cuba for several years. American Samoa
7448-519: The colonial era , before 1776, the west was of high priority for settlers and politicians. The American frontier began when Jamestown , Virginia, was settled by the English in 1607. In the earliest days of European settlement on the Atlantic coast, until about 1680, the frontier was essentially any part of the interior of the continent beyond the fringe of existing settlements along the Atlantic coast. English , French , Spanish , and Dutch patterns of expansion and settlement were quite different. Only
7600-535: The "Rockies", becoming the first Europeans to report on this uncharted mountain range. Sir Alexander Mackenzie (1764 – March 11, 1820) became the first European to cross the Rocky Mountains in 1793. He found the upper reaches of the Fraser River and reached the Pacific coast of what is now Canada on July 20 of that year, completing the first recorded transcontinental crossing of North America north of Mexico. He arrived at Bella Coola, British Columbia , where he first reached saltwater at South Bentinck Arm, an inlet of
7752-444: The 1600s to the 1900s (decades) with occasional movements north into Maine and New Hampshire, south into Florida, and east from California into Nevada. Pockets of settlements would also appear far past the established frontier line, particularly on the West Coast and the deep interior, with settlements such as Los Angeles and Salt Lake City respectively. The " West " was the recently settled area near that boundary. Thus, parts of
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#17330854831917904-415: The 1790–1820 era were to grow the economy, avoid draining away the skilled workers needed in the East, distribute the land wisely, sell it at prices that were reasonable to settlers yet high enough to pay off the national debt, clear legal titles, and create a diversified Western economy that would be closely interconnected with the settled areas with minimal risk of a breakaway movement. By the 1830s, however,
8056-442: The 1840s called for low-cost land for free white farmers, a position enacted into law by the new Republican Party in 1862, offering free 160 acres (65 ha) homesteads to all adults, male and female, black and white, native-born or immigrant. After winning the Revolutionary War (1783), American settlers in large numbers poured into the west. In 1788, American pioneers to the Northwest Territory established Marietta, Ohio , as
8208-402: The 19th century. The United States began expanding beyond North America in 1856 with the passage of the Guano Islands Act , causing many small and uninhabited, but economically important, islands in the Caribbean Sea and the Pacific Ocean to be claimed. Most of these claims were eventually abandoned, largely because of competing claims from other countries. The Pacific expansion culminated in
8360-468: The Appalachian Mountains included the Connecticut River valley, and northern New England (which was a move to the north, not the west). Settlers on the frontier often connected isolated incidents to indicate Indian conspiracies to attack them, but these lacked a French diplomatic dimension after 1763, or a Spanish connection after 1820. Most of the frontiers experienced numerous conflicts. The French and Indian War broke out between Britain and France, with
8512-420: The British plan to set up a Native state in U.S. territory south of the Great Lakes. They explained the American policy toward the acquisition of Native lands: The United States, while intending never to acquire lands from the Indians otherwise than peaceably, and with their free consent, are fully determined, in that manner, progressively, and in proportion as their growing population may require, to reclaim from
8664-427: The California and Alaska gold rushes combined and was important in the financing of the Union Army during the American Civil War . The transcontinental railroad was completed in 1869, and Yellowstone National Park was established as the world's first national park in 1872. Meanwhile, a transcontinental railroad in Canada was originally promised in 1871. Though political complications pushed its completion to 1885,
8816-435: The French making up for their small colonial population base by enlisting Native war parties as allies. The series of large wars spilling over from European wars ended in a complete victory for the British in the worldwide Seven Years' War . In the peace treaty of 1763 , France ceded practically everything, as the lands west of the Mississippi River, in addition to Florida and New Orleans, went to Spain. Otherwise, lands east of
8968-511: The Homestead Law of 1862, with a moderated pace that gave settlers 160 acres free after they worked on it for five years. The private profit motive dominated the movement westward, but the federal government played a supporting role in securing the land through treaties and setting up territorial governments, with governors appointed by the President. The federal government first acquired western territory through treaties with other nations or native tribes. Then it sent surveyors to map and document
9120-571: The Liard River in British Columbia (at 59° N) and the Rio Grande in New Mexico (at 35° N). Prairie occurs at or below 550 metres (1,800 ft), while the highest peak in the range is Mount Elbert at 4,400 metres (14,440 ft). Precipitation ranges from 250 millimetres (10 in) per year in the southern valleys to 1,500 millimetres (60 in) per year locally in the northern peaks. Average January temperatures can range from −7 °C (20 °F) in Prince George, British Columbia, to 6 °C (43 °F) in Trinidad, Colorado . Therefore, there
9272-448: The Mississippi River and what is now Canada went to Britain. Regardless of wars, Americans were moving across the Appalachians into western Pennsylvania, what is now West Virginia, and areas of the Ohio Country , Kentucky, and Tennessee. In the southern settlements via the Cumberland Gap , their most famous leader was Daniel Boone . Young George Washington promoted settlements in West Virginia on lands awarded to him and his soldiers by
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#17330854831919424-537: The Missouri River, and such principal stream of it, as, by its course and communication with the waters of the Pacific Ocean; whether the Columbia, Oregon, Colorado, or any other river may offer the most direct and practicable communication across the continent for commerce". Jefferson also instructed the expedition to study the region's native tribes (including their morals, language, and culture), weather, soil, rivers, commercial trading, and animal and plant life. Entrepreneurs, most notably John Jacob Astor quickly seized
9576-430: The Native American cultures. Native American populations were extirpated from most of their historical ranges by disease, warfare, habitat loss (eradication of the bison), and continued assaults on their culture. In 1739, French fur traders Pierre and Paul Mallet, while journeying through the Great Plains, discovered a range of mountains at the headwaters of the Platte River , which local American Indian tribes called
9728-434: The Northeast, there was little competition on the western frontier for Transylvania University , founded in Lexington, Kentucky, in 1780. It boasted of a law school in addition to its undergraduate and medical programs. Transylvania attracted politically ambitious young men from across the Southwest, including 50 who became United States senators, 101 representatives, 36 governors, and 34 ambassadors, as well as Jefferson Davis,
9880-529: The Northern Rockies surrounding Tumbler Ridge, British Columbia . Abandoned mines with their wakes of mine tailings and toxic wastes dot the Rocky Mountain landscape. In one major example, eighty years of zinc mining profoundly polluted the river and bank near Eagle River in north-central Colorado. High concentrations of the metal carried by spring runoff harmed algae , moss , and trout populations. An economic analysis of mining effects at this site revealed declining property values, degraded water quality, and
10032-404: The Northwest terrain, including the important South Pass through the central Rocky Mountains. Discovered about 1812, it later became a major route for settlers to Oregon and Washington. By 1820, however, a new "brigade-rendezvous" system sent company men in "brigades" cross-country on long expeditions, bypassing many tribes. It also encouraged "free trappers" to explore new regions on their own. At
10184-492: The Pacific Ocean. The Lewis and Clark Expedition (1804–1806) was the first scientific reconnaissance of the Rocky Mountains. Specimens were collected for contemporary botanists, zoologists, and geologists. The expedition was said to have paved the way to (and through) the Rocky Mountains for European-Americans from the East, although Lewis and Clark met at least 11 European-American mountain men during their travels. Mountain men , primarily French, Spanish, and British, roamed
10336-423: The Rockies by the Geological Survey of Canada , although the Geological Society of America definition does consider them parts of the Rocky Mountains system as the "Arctic Rockies". The Continental Divide of the Americas is in the Rocky Mountains and designates the line at which waters flow either to the Atlantic or Pacific Oceans. Triple Divide Peak (2,440 m or 8,020 ft) in Glacier National Park
10488-411: The Rockies into dramatic peaks and valleys. At the end of the last ice age , humans began inhabiting the mountain range. After explorations of the range by Europeans, such as Sir Alexander Mackenzie , and Anglo-Americans, such as the Lewis and Clark Expedition , natural resources such as minerals and fur drove the initial economic exploitation of the mountains, although the range itself never experienced
10640-411: The Rockies, and are shown along the Dakota Hogback , an early Cretaceous sandstone formation running along the eastern flank of the modern Rockies. Just after the Laramide orogeny, the Rockies were like Tibet : a high plateau, probably 6,000 metres (20,000 ft) above sea level. In the last sixty million years, erosion stripped away the high rocks, revealing the ancestral rocks beneath, and forming
10792-410: The Rocky Mountains from 1720 to 1800 seeking mineral deposits and furs. The fur-trading North West Company established Rocky Mountain House as a trading post in what is now the Rocky Mountain Foothills of present-day Alberta in 1799, and their business rivals the Hudson's Bay Company established Acton House nearby. These posts served as bases for most European activity in the Canadian Rockies in
10944-542: The Rocky Mountains is one of more rapid change. The Spanish explorer Francisco Vázquez de Coronado —with a group of soldiers and missionaries marched into the Rocky Mountain region from the south in 1540. In 1610, the Spanish founded the city of Santa Fe , the oldest continuous seat of government in the United States, at the foot of the Rockies in present-day New Mexico. The introduction of the horse, metal tools, rifles, new diseases, and different cultures profoundly changed
11096-553: The Rocky Mountains on the Oregon Trail beginning in the 1840s. The Mormons began settling near the Great Salt Lake in 1847. From 1859 to 1864, gold was discovered in Colorado, Idaho, Montana, and British Columbia, sparking several gold rushes bringing thousands of prospectors and miners to explore every mountain and canyon and to create the Rocky Mountains' first major industry. The Idaho gold rush alone produced more gold than
11248-532: The Rocky Mountains were formed before the mountains were raised by tectonic forces. The oldest rock is Precambrian metamorphic rock that forms the core of the North American continent. There is also Precambrian sedimentary argillite , dating back to 1.7 billion years ago. During the Paleozoic , western North America lay underneath a shallow sea, which deposited many kilometers of limestone and dolomite . In
11400-686: The Royal government in payment for their wartime service in Virginia's militia. Settlements west of the Appalachian Mountains were curtailed briefly by the Royal Proclamation of 1763 , forbidding settlement in this area. The Treaty of Fort Stanwix (1768) re-opened most of the western lands for frontiersmen to settle. The nation was at peace after 1783. The states gave Congress control of the western lands and an effective system for population expansion
11552-404: The U.S. portion of the mountain range, apex predators such as grizzly bears and wolf packs had been extirpated from their original ranges, but have partially recovered due to conservation measures and reintroduction . Other recovering species include the bald eagle and the peregrine falcon . Since the last great ice age, the Rocky Mountains were home first to indigenous peoples including
11704-582: The Union . In 1912, Arizona was the last state established in the contiguous United States , commonly called the "lower 48". In 1959, Hawaii was the 50th and most recent state admitted. The capital was not specifically established; at the time, the Continental Congress met in Philadelphia . Many states had vaguely defined and surveyed borders; these are not noted as contested in the maps unless there
11856-710: The United Kingdom and the United States over the next few decades failed to settle upon a compromise boundary and the Oregon Dispute became important in geopolitical diplomacy between the British Empire and the new American Republic. In 1841, James Sinclair , Chief Factor of the Hudson's Bay Company, guided some 200 settlers from the Red River Colony west to bolster settlement around Fort Vancouver in an attempt to retain
12008-599: The United Kingdom on the other, was clarified by the treaty. In 1816, construction began on an unnamed fort nicknamed " Fort Blunder " on a peninsula in Lake Champlain that, while south of the surveyed border, was discovered to be north of 45° north , which was the border set by the Treaty of Paris and thus in British territory. Consequently, construction on the fort was abandoned. The Webster–Ashburton Treaty specified that section of
12160-526: The United States or Mexico is to be considered on the other side of the border. In all cases of these adjustments along the Rio Grande under the 1905 convention, which occurred on 37 different dates from 1910 to 1976, the transferred land was minuscule (ranging from one to 646 acres) and uninhabited. Rocky Mountains The Rocky Mountains , also known as the Rockies , are a major mountain range and
12312-554: The United States, though these rights did not include possession and also included obligations to Britain and Russia concerning their claims in the same region. After 1802, fur traders and explorers ushered in the first widespread American presence in the Rockies south of the 49th parallel. The more famous of these include William Henry Ashley , Jim Bridger , Kit Carson , John Colter , Thomas Fitzpatrick , Andrew Henry , and Jedediah Smith . On July 24, 1832, Benjamin Bonneville led
12464-519: The West and wholesalers and factories back east. The postal service likewise assisted the Army in expanding control over the vast western territories. The widespread circulation of important newspapers by mail, such as the New York Weekly Tribune , facilitated coordination among politicians in different states. The postal service helped to integrate already established areas with the frontier, creating
12616-517: The West was filling up with squatters who had no legal deed, although they may have paid money to previous settlers. The Jacksonian Democrats favored the squatters by promising rapid access to cheap land. By contrast, Henry Clay was alarmed at the "lawless rabble" heading West who were undermining the utopian concept of a law-abiding, stable middle-class republican community. Rich southerners, meanwhile, looked for opportunities to buy high-quality land to set up slave plantations. The Free Soil movement of
12768-467: The Wilderness Road. Kentucky at this time had been depopulated—it was "empty of Indian villages." However raiding parties sometimes came through. One of those intercepted was Abraham Lincoln 's grandfather, who was scalped in 1784 near Louisville. The War of 1812 marked the final confrontation involving major British and Native forces fighting to stop American expansion. The British war goal included
12920-429: The advance of American settlement westward, explain American development." Through treaties with foreign nations and native tribes , political compromise, military conquest, the establishment of law and order, the building of farms, ranches, and towns, the marking of trails and digging of mines, combined with successive waves of immigrants moving into the region, the United States expanded from coast to coast, fulfilling
13072-515: The archetypical Old West or "Wild West" such as violent conflict arising from encroaching settlement into frontier land, the removal and assimilation of natives, consolidation of property to large corporations and government, vigilantism, and the attempted enforcement of laws upon outlaws. In 1890, the Superintendent of the Census, William Rush Merriam stated: "Up to and including 1880 the country had
13224-410: The border was to follow the surveyed line, rather than the exact parallel, thus moving the fort's area into the United States, and a new fort, Fort Montgomery , would be built on the spot in 1844. As the earlier line was surveyed, even though it did not match the definition, it was deemed to be the legitimate border. The treaty was vague on which strait should be the border between Vancouver Island and
13376-428: The coal bed, and separating the gas from the water; or injecting water to fracture the coal to release the gas (so-called hydraulic fracturing ). Agriculture and forestry are major industries. Agriculture includes dryland and irrigated farming and livestock grazing. Livestock are frequently moved between high-elevation summer pastures and low-elevation winter pastures, a practice known as transhumance . Every year
13528-671: The coalition of hostile Native tribes. Meanwhile, General Andrew Jackson ended the Native military threat in the Southeast at the Battle of Horseshoe Bend in 1814 in Alabama. In general, the frontiersmen battled the Natives with little help from the U.S. Army or the federal government. To end the war, American diplomats negotiated the Treaty of Ghent , signed towards the end of 1814, with Britain. They rejected
13680-543: The colonies resolved that they were free and independent states. The union was formalized in the Articles of Confederation , which came into force on March 1, 1781, after being ratified by all 13 states. Their independence was recognized by Great Britain in the Treaty of Paris of 1783, which concluded the American Revolutionary War . This effectively doubled the size of the colonies, now able to stretch west past
13832-659: The continent, thus causing a dispute over ownership of the San Juan Islands . It specified "through the middle of the said channel and of Fuca Straits, to the Pacific Ocean". A small strip between the Texas Panhandle and Kansas Territory was unclaimed because it fell south of Kansas Territory's border but north of 36°30′ north , which had been established in the Missouri Compromise as the northern limit of slavery, and thus Texas could not have it. This became known as
13984-462: The coordinates they were either phantoms or duplicates. In addition, Sarah Ann Island was claimed, which may have existed and would be sighted as late as 1917, but has since disappeared. Dakota Territory was organized from Nebraska Territory and the unorganized territory north of it. Nebraska Territory's western border was moved to 33° west from Washington, gaining small portions of Utah Territory and Washington Territory . Nevada Territory
14136-739: The creation of an Indian barrier state under British auspices in the Midwest which would halt American expansion westward. American frontier militiamen under General Andrew Jackson defeated the Creeks and opened the Southwest, while militia under Governor William Henry Harrison defeated the Native-British alliance at the Battle of the Thames in Canada in 1813. The death in battle of the Native leader Tecumseh dissolved
14288-594: The current landscape of the Rockies. Periods of glaciation occurred from the Pleistocene Epoch (1.8 million – 70,000 years ago) to the Holocene Epoch (fewer than 11,000 years ago). These ice ages left their mark on the Rockies, forming extensive glacial landforms, such as U-shaped valleys and cirques . Recent glacial episodes included the Bull Lake Glaciation , which began about 150,000 years ago, and
14440-554: The defining features of American national identity. Historians have debated at length as to when the frontier era began, when it ended, and which were its key sub-periods. For example, the Old West subperiod is sometimes used by historians regarding the time from the end of the American Civil War in 1865 to when the Superintendent of the Census, William Rush Merriam , stated the U.S. Census Bureau would stop recording western frontier settlement as part of its census categories after
14592-690: The early 19th century. Among the most notable are the expeditions of David Thompson , who followed the Columbia River to the Pacific Ocean. On his 1811 expedition, he camped at the junction of the Columbia River and the Snake River and erected a pole and notice claiming the area for the United Kingdom and stating the intention of the North West Company to build a fort at the site. By the Anglo-American Convention of 1818 , which established
14744-677: The end of the gathering season, the trappers would "rendezvous" and turn in their goods for pay at river ports along the Green River , Upper Missouri, and the Upper Mississippi. St. Louis was the largest of the rendezvous towns. By 1830, however, fashions changed and beaver hats were replaced by silk hats, ending the demand for expensive American furs. Thus ended the era of the mountain men , trappers, and scouts such as Jedediah Smith , Hugh Glass , Davy Crockett , Jack Omohundro , and others. The trade in beaver fur virtually ceased by 1845. There
14896-469: The established frontier line. The U.S. Census Bureau designated frontier territory as generally unoccupied land with a population density of fewer than 2 people per square mile (0.77 people per square kilometer). The frontier line was the outer boundary of European-American settlement into this land. Beginning with the first permanent European settlements on the East Coast , it has moved steadily westward from
15048-399: The expansion, but Jeffersonians hailed the opportunity to create millions of new farms to expand the domain of land-owning yeomen ; the ownership would strengthen the ideal republican society, based on agriculture (not commerce), governed lightly, and promoting self-reliance and virtue, as well as form the political base for Jeffersonian Democracy . France was paid for its sovereignty over
15200-569: The first wagon train across the Rocky Mountains by using South Pass in the present State of Wyoming. Similarly, in the wake of Mackenzie's 1793 expedition, fur trading posts were established west of the Northern Rockies in a region of the northern Interior Plateau of British Columbia which came to be known as New Caledonia , beginning with Fort McLeod (today's community of McLeod Lake) and Fort Fraser , but ultimately focused on Stuart Lake Post (today's Fort St. James ). Negotiations between
15352-823: The first permanent American settlement in the Northwest Territory . In 1775, Daniel Boone blazed a trail for the Transylvania Company from Virginia through the Cumberland Gap into central Kentucky. It was later lengthened to reach the Falls of the Ohio at Louisville . The Wilderness Road was steep and rough, and it could only be traversed on foot or horseback, but it was the best route for thousands of settlers moving into Kentucky . In some areas they had to face Native attacks. In 1784 alone, Natives killed over 100 travelers on
15504-644: The first time. One of the largest and most famous camp meetings took place at Cane Ridge, Kentucky , in 1801. United States territorial acquisitions The United States of America was formed after thirteen British colonies in North America declared independence from the British Empire on July 4, 1776. In the Lee Resolution , passed by the Second Continental Congress two days prior,
15656-577: The forces dominating American character." Turner's ideas since 1893 have inspired generations of historians (and critics) to explore multiple individual American frontiers, but the popular folk frontier concentrates on the conquest and settlement of Native American lands west of the Mississippi River , in what is now the Midwest , Texas , the Great Plains , the Rocky Mountains , the Southwest , and
15808-458: The full extent of the British colony. However, the British-American treaty granted the extension of West Florida to the United States, where it enlarged Georgia south to 31° north , indicating that only the original definition of West Florida was to be ceded to Spain. The local Spanish governors also made a move to occupy forts along the Mississippi River , with claims to everything south of
15960-559: The good land, and worked it with slaves. The area was no longer "frontier". It had a stratified society comprising a powerful upper-class white landowning gentry, a small middle-class, a fairly large group of landless or tenant white farmers, and a growing slave population at the bottom of the social pyramid. Unlike the North, where small towns and even cities were common, the South was overwhelmingly rural. The seaboard colonial settlements gave priority to land ownership for individual farmers, and as
16112-523: The growth of the Rocky Mountains in the United States, where the Farallon Plate dove at a shallow angle below the North American Plate . This low angle moved the focus of melting and mountain building much farther inland than the normal 300 to 500 kilometres (200 to 300 mi). Scientists hypothesize that the shallow angle of the subducting plate increased the friction and other interactions with
16264-666: The highest peaks in central North America. The range's highest peak is Mount Elbert in Colorado at 4,401 metres (14,440 feet) above sea level. Mount Robson in British Columbia, at 3,954 m (12,972 ft), is the highest peak in the Canadian Rockies . The eastern edge of the Rockies rises dramatically above the Interior Plains of central North America, including the Sangre de Cristo Mountains of New Mexico and Colorado ,
16416-499: The human population grew rapidly in the Rocky Mountain states between 1950 and 1990. The forty-year statewide increases in population range from 35% in Montana to about 150% in Utah and Colorado. The populations of several mountain towns and communities have doubled in the forty years 1972–2012. Jackson, Wyoming , increased 260%, from 1,244 to 4,472 residents, in those forty years. The rocks in
16568-507: The ideology of Manifest Destiny. In his "Frontier Thesis" (1893), Turner theorized that the frontier was a process that transformed Europeans into a new people, the Americans, whose values focused on equality, democracy, and optimism, as well as individualism , self-reliance, and even violence. The frontier is the margin of undeveloped territory that would comprise the United States beyond
16720-741: The land. By the 20th century, Washington bureaucracies managed the federal lands such as the United States General Land Office in the Interior Department, and after 1891, the Forest Service in the Department of Agriculture. After 1900, dam building and flood control became major concerns. Transportation was a key issue and the Army (especially the Army Corps of Engineers) was given full responsibility for facilitating navigation on
16872-524: The largest mountain system in North America . The Rocky Mountains stretch 3,000 miles (4,800 kilometers) in straight-line distance from the northernmost part of Western Canada , to New Mexico in the Southwestern United States . Depending on differing definitions between Canada and the U.S., its northern terminus is located either in northern British Columbia 's Terminal Range south of
17024-524: The loss of recreational opportunities. The analysis also revealed that cleanup of the river could yield $ 2.3 million in additional revenue from recreation. In 1983, the former owner of the zinc mine was sued by the Colorado Attorney General for the $ 4.8 million cleanup costs; five years later, ecological recovery was considerable. The Rocky Mountains contain several sedimentary basins that are rich in coalbed methane . Coalbed methane
17176-463: The mountains for the proposed transcontinental railroad, but his expedition ended in near-disaster when it became lost and was trapped by heavy snow. His reports mixed narrative of exciting adventure with scientific data and detailed practical information for travelers. It caught the public imagination and inspired many to head west. Goetzman says it was "monumental in its breadth, a classic of exploring literature". While colleges were springing up across
17328-446: The mountains is a calque of an Algonquian name, specifically Plains Cree ᐊᓯᓃᐘᒋᐩ asinîwaciy (originally transcribed as-sin-wati ), literally "rocky mountain / alp". The first mention of their present name by a European was in the journal of Jacques Legardeur de Saint-Pierre in 1752, where they were called " montagnes de Roche ". Another name given to the place by the Cree
17480-401: The new Republican Party in 1856. He led a series of expeditions in the 1840s which answered many of the outstanding geographic questions about the little-known region. He crossed through the Rocky Mountains by five different routes and mapped parts of Oregon and California. In 1846–1847, he played a role in conquering California. In 1848–1849, Frémont was assigned to locate a central route through
17632-622: The opportunity and expanded fur trading operations into the Pacific Northwest . Astor's " Fort Astoria " (later Fort George), at the mouth of the Columbia River, became the first permanent white settlement in that area, although it was not profitable for Astor. He set up the American Fur Company in an attempt to break the hold that the Hudson's Bay Company monopoly had over the region. By 1820, Astor had taken over independent traders to create
17784-432: The opportunity for commercial agriculture was low. These areas remained primarily in subsistence agriculture, and as a result, by the 1760s these societies were highly egalitarian , as explained by historian Jackson Turner Main: The typical frontier society, therefore, was one in which class distinctions were minimized. The wealthy speculator, if one was involved, usually remained at home, so that ordinarily no one of wealth
17936-566: The part of West Florida west of the Perdido River , whereas Spain claimed it ended at the western border of West Florida; and the southwestern border with New Spain was disputed , as the United States claimed the Sabine River as the border, but Spain maintained it was the Calcasieu River and others. [REDACTED] The border between New York and Vermont on the one side, and
18088-539: The plains in fall and winter for bison and to the mountains in spring and summer for fish, deer, elk, roots, and berries. In Colorado, along with the crest of the Continental Divide, rock walls that Native Americans built for driving game date back 5,400–5,800 years. A growing body of scientific evidence indicates that indigenous people had significant effects on mammal populations by hunting and on vegetation patterns through deliberate burning. Recent human history of
18240-546: The population grew they pushed westward for fresh farmland. Unlike Britain, where a small number of landlords owned most of the land, ownership in America was cheap, easy and widespread. Land ownership brought a degree of independence as well as a vote for local and provincial offices. The typical New England settlements were quite compact and small, under a square mile. Conflict with the Native Americans arose out of political issues, namely who would rule. Early frontier areas east of
18392-414: The possession of lands more than they can cultivate, and more than adequate to their subsistence, comfort, and enjoyment, by cultivation. If this is a spirit of aggrandizement, the undersigned are prepared to admit, in that sense, its existence; but they must deny that it affords the slightest proof of an intention not to respect the boundaries between them and European nations, or of a desire to encroach upon
18544-409: The practice. By the 1910 U.S. census however, the frontier had shrunk into divided areas without a singular westward line of settlement. An influx of agricultural homesteaders in the first two decades of the 20th century, taking up more acreage than homestead grants in the entirety of the 19th century, is cited to have significantly reduced open land. A frontier is a zone of contact at the edge of
18696-473: The present. [REDACTED] [REDACTED] [REDACTED] Because of ambiguities and poor knowledge of geography, the treaty was unclear in several areas: The Peace of Paris also involved treaties with France and Spain , with Great Britain ceding the Floridas to Spain . During their ownership of West Florida , the British had moved its border north, and the cession to Spain appeared to apply to
18848-516: The president of the Confederacy. Most frontiersmen showed little commitment to religion until traveling evangelists began to appear and to produce "revivals". The local pioneers responded enthusiastically to these events and, in effect, evolved their populist religions, especially during the Second Great Awakening (1790–1840), which featured outdoor camp meetings lasting a week or more and which introduced many people to organized religion for
19000-429: The president. Then when the population reached 100,000 the territory applied for statehood. Frontiersmen typically dropped the legalistic formalities and restrictive franchise favored by eastern upper classes and adopting more democracy and more egalitarianism. In 1810, the western frontier had reached the Mississippi River . St. Louis, Missouri , was the largest town on the frontier, the gateway for travel westward, and
19152-541: The region getting a bad reputation as the "Great American Desert", which discouraged settlement in that area for several decades. In 1811, naturalists Thomas Nuttall (1786–1859) and John Bradbury (1768–1823) traveled up the Missouri River documenting and drawing plant and animal life. Artist George Catlin (1796–1872) painted accurate paintings of Native American culture. Swiss artist Karl Bodmer made compelling landscapes and portraits. John James Audubon (1785–1851)
19304-604: The region was made to Panama in 1999. States have generally retained their initial borders once established. Only three states ( Kentucky , Maine , and West Virginia ) have been created directly from area belonging to another state (although at the time of admission, Vermont agreed to a monetary payment for New York to relinquish its claim); all of the other states were created from federal territories or from acquisitions. Four states ( Louisiana , Missouri , Nevada , and Pennsylvania ) have expanded substantially by acquiring additional federal territory after their initial admission to
19456-548: The rivers. The steamboat, first used on the Ohio River in 1811, made possible inexpensive travel using the river systems, especially the Mississippi and Missouri rivers and their tributaries. Army expeditions up the Missouri River in 1818–1825 allowed engineers to improve the technology. For example, the Army's steamboat " Western Engineer " of 1819 combined a very shallow draft with one of the earliest stern wheels. In 1819–1825, Colonel Henry Atkinson developed keelboats with hand-powered paddle wheels. The federal postal system played
19608-618: The scenic areas of the Rocky Mountains draw millions of tourists. The main language of the Rocky Mountains is English. But there are also linguistic pockets of Spanish and indigenous languages. People from all over the world visit the sites to hike, camp, or engage in mountain sports . In the summer season, examples of tourist attractions are: In the United States: In Canada, the mountain range contains these national parks : Glacier National Park in Montana and Waterton Lakes National Park in Alberta border each other and are collectively known as Waterton-Glacier International Peace Park . In
19760-494: The service industries that support them. Tents and camps became ranches and farms, forts and train stations became towns, and some towns became cities. Economic resources of the Rocky Mountains are varied and abundant. Minerals found in the Rocky Mountains include significant deposits of copper, gold, lead, molybdenum , silver, tungsten , and zinc . The Wyoming Basin and several smaller areas contain significant reserves of coal, natural gas, oil shale , and petroleum. For example,
19912-399: The southeastern border with Spanish Florida was the subject of much dispute until it and Spanish claims to the Oregon Country were ceded to the US in 1821. The Oregon Country gave the United States access to the Pacific Ocean , though it was shared for a time with the United Kingdom . The annexation of the Republic of Texas in 1845 led directly to the Mexican–American War , after which
20064-510: The southern Rockies, near present-day Colorado, these ancestral rocks were disturbed by mountain building approximately 300 Ma , during the Pennsylvanian . This mountain-building produced the Ancestral Rocky Mountains. They consisted largely of Precambrian metamorphic rock forced upward through layers of the limestone laid down in the shallow sea. The mountains eroded throughout the late Paleozoic and early Mesozoic , leaving extensive deposits of sedimentary rock . Terranes began colliding with
20216-421: The state of nature, and to bring into cultivation every portion of the territory contained within their acknowledged boundaries. In thus providing for the support of millions of civilized beings, they will not violate any dictate of justice or humanity; for they will not only give to the few thousand savages scattered over that territory an ample equivalent for any right they may surrender, but will always leave them
20368-504: The story of the creation and defense of communities, the use of the land, the development of crops and hotels, and the formation of states." They explain, "It is a tale of conquest, but also one of survival, persistence, and the merging of peoples and cultures that gave birth and continuing life to America." Turner himself repeatedly emphasized how the availability of "free land" to start new farms attracted pioneering Americans: "The existence of an area of free land, its continuous recession, and
20520-399: The support of settlers and the general public who preferred that the military remain as close as possible. The frontier area was vast and even Davis conceded that "concentration would have exposed portions of the frontier to Native hostilities without any protection." Government and private enterprise sent many explorers to the West. In 1805–1806, Army lieutenant Zebulon Pike (1779–1813) led
20672-405: The territories of Great Britain. [...] They will not suppose that that Government will avow, as the basis of their policy towards the United States a system of arresting their natural growth within their territories, for the sake of preserving a perpetual desert for savages. As settlers poured in, the frontier districts first became territories, with an elected legislature and a governor appointed by
20824-407: The territory in terms of international law. Between 1803 and the 1870s, the federal government purchased the land from the Native tribes then in possession of it. 20th-century accountants and courts have calculated the value of the payments made to the Natives, which included future payments of cash, food, horses, cattle, supplies, buildings, schooling, and medical care. In cash terms, the total paid to
20976-451: The thick continental mass above it. Tremendous thrusts piled sheets of crust on top of each other, building the broad, high Rocky Mountain range. The current southern Rockies were forced upwards through the layers of Pennsylvanian and Permian sedimentary remnants of the Ancestral Rocky Mountains. Such sedimentary remnants were often tilted at steep angles along the flanks of the modern range; they are now visible in many places throughout
21128-710: The tree-line for the Rocky Mountains, which varies from 3,700 m (12,000 ft) in New Mexico to 760 m (2,500 ft) at the northern end of the Rockies (near the Yukon). The U.S. Geological Survey defines ten forested zones in the Rockies. Zones in more southern, warmer, or drier areas are defined by the presence of pinyon pines / junipers , ponderosa pines , or oaks mixed with pines . In more northern, colder, or wetter areas, zones are defined by Douglas firs , Cascadian species (such as western hemlock ), lodgepole pines / quaking aspens , or firs mixed with spruce . Near tree-line, zones can consist of white pines (such as whitebark pine or bristlecone pine ); or
21280-442: The tribes in the area of the Louisiana Purchase amounted to about $ 2.6 billion, or nearly $ 9 billion in 2016 dollars. Additional sums were paid to the Natives living east of the Mississippi for their lands, as well as payments to Natives living in parts of the west outside the Louisiana Purchase. Even before the purchase, Jefferson was planning expeditions to explore and map the lands. He charged Lewis and Clark to "explore
21432-402: The victorious United States obtained the northern half of Mexico 's territory, including what was quickly made the state of California . As the development of the country moved west, however, the question of slavery became more important, with vigorous debate over whether the new territories would allow slavery and events such as the Missouri Compromise and Bleeding Kansas . This came to
21584-408: The western edge of North America in the Mississippian (approximately 350 million years ago), causing the Antler orogeny . For 270 million years, the focus of the effects of plate collisions were near the edge of the North American Plate boundary, far to the west of the Rocky Mountain region. It was not until 80 Ma that these effects began reaching the Rockies. The current Rocky Mountains arose in
21736-538: The western edge of the Rockies is formed by the huge Rocky Mountain Trench , which runs the length of British Columbia from its beginning as the Kechika Valley on the south bank of the Liard River , to the middle Lake Koocanusa valley in northwestern Montana. The Canadian Rockies are defined by Canadian geographers as everything south of the Liard River and east of the Rocky Mountain Trench , and do not extend into Yukon , Northwest Territories or central British Columbia . They are divided into three main groups:
21888-432: Was a resident. The class of landless poor was small. The great majority were landowners, most of whom were also poor because they were starting with little property and had not yet cleared much land nor had they acquired the farm tools and animals which would one day make them prosperous. Few artisans settled on the frontier except for those who practiced a trade to supplement their primary occupation of farming. There might be
22040-405: Was acquired by the United States in 1900 after the end of the Second Samoan Civil War . The United States purchased the U.S. Virgin Islands from Denmark in 1917. Puerto Rico and Guam remain territories, and the Philippines became independent in 1946, after being a major theater of World War II . Following the war, many islands were entrusted to the U.S. by the United Nations , and while
22192-480: Was an active dispute. The borders of North Carolina were particularly poorly surveyed, its border with South Carolina having been done in several pieces, none of which truly matched the spirit of the charter, and its border with Virginia was only surveyed roughly halfway inland from the sea. Several northeastern states had overlapping claims: Connecticut, Massachusetts Bay, and New York all claimed land west of their accepted borders, overlapping with each other and with
22344-422: Was developed. The Northwest Ordinance of 1787 abolished slavery in the area north of the Ohio River and promised statehood when a territory reached a threshold population, as Ohio did in 1803 . The first major movement west of the Appalachian mountains originated in Pennsylvania, Virginia, and North Carolina as soon as the Revolutionary War ended in 1781. Pioneers housed themselves in a rough lean-to or at most
22496-444: Was erroneously left behind on the western side of Wyoming Territory. The North-Western Territory was transferred by the United Kingdom to Canada , thus transferring its portion of the Alaska boundary dispute . On this same date several islands, Cagayan de Sulu and Sibutu among them, were purchased from Spain and assigned to the Philippines, which was then being governed as a U.S. insular area . The borders specified in
22648-417: Was organized from Utah Territory west of 39° west from Washington . North Carolina proclaimed its secession from the Union, withdrawing from Congress. Caroline Island was claimed by the United Kingdom . Wyoming Territory was organized from portions of Dakota , Idaho , and Utah Territories. The territory would remain under the jurisdiction of the Dakota Territory until its own government
22800-409: Was organized on May 19, 1869. The act organizing Wyoming Territory became law on this date, but it is unclear if the territory could be considered "organized" until May 19, 1869, as the act specifies it was not to take effect until a government is organized; however, all sources use this date as the creation, and most use it for the organization, of the territory. A tiny portion of the Dakota Territory
22952-450: Was particularly encouraged by President Thomas Jefferson following the Louisiana Purchase , giving rise to the expansionist attitude known as " manifest destiny " and historians' " Frontier Thesis ". The legends, historical events and folklore of the American frontier, known as the frontier myth , have embedded themselves into United States culture so much so that the Old West, and the Western genre of media specifically, has become one of
23104-425: Was wide agreement on the need to settle the new territories quickly, but the debate polarized over the price the government should charge. The conservatives and Whigs, typified by the president John Quincy Adams , wanted a moderated pace that charged the newcomers enough to pay the costs of the federal government. The Democrats, however, tolerated a wild scramble for land at very low prices. The final resolution came in
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