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Big Thompson River

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The Big Thompson River is a tributary of the South Platte River , approximately 78 miles (126 km) long, in the U.S. state of Colorado . Originating in Forest Canyon in Rocky Mountain National Park , the river flows into Lake Estes in the town of Estes Park and then through Big Thompson Canyon. It includes four crossings/bridges which are listed on the U.S. National Register of Historic Places.

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127-842: The headwaters of the Big Thompson River begin in Forest Canyon within Rocky Mountain National Park in Larimer County, Colorado . The river flows east through Moraine Park to the town of Estes Park . There it is held in Lake Estes by Olympus Dam before being released into the Big Thompson Canyon. The North Fork Big Thompson River also begins in Rocky Mountain National Park, on the northern slopes of

254-687: A mining town on the banks of the South Platte River in what was then western Kansas Territory , on traditional lands of Cheyenne and Arapaho . This was the first historical settlement in what later became the city of Denver. But the site faded quickly, and by the summer of 1859 it was abandoned in favor of Auraria (named after the gold-mining town of Auraria, Georgia ) and St. Charles City. On November 22, 1858, General William Larimer and Captain Jonathan Cox, both land speculators from eastern Kansas Territory , placed cottonwood logs to stake

381-533: A 360 degree view of eastern part of the park. The summit plateau of Deer Mountain offers expansive views of the Continental Divide. During the winter, the lower trail generally has little snow, though packed and drifted snow are to be expected on the switchbacks. Snow cover on the summit may be three to five feet deep, requiring the use of snowshoes or skis. The trail to Lake Estes in Estes Park meanders through

508-629: A 44% increase since 2012. The park has five visitor centers, with park headquarters located at the Beaver Meadows Visitor Center —a National Historic Landmark designed by the Frank Lloyd Wright School of Architecture at Taliesin West . National Forest lands surround the park on all sides, including Roosevelt National Forest to the north and east, Routt National Forest to the north and west, and Arapaho National Forest to

635-488: A bird sanctuary, beside a golf course, along the Big Thompson River and Fish Creek, through the lakeside picnic area and along the lakeshore. The trail is used by birdwatchers, bikers and hikers. Lawn Lake Trail climbs to Lawn Lake and Crystal Lake, one of the parks deepest lakes, in the alpine ecosystem and along the course of the Roaring River. The river shows the massive damage caused by a dam failure in 1982 that claimed

762-594: A change of ownership in 2006. Qwest Corporation , founded in Denver in 1911 as Mountain States Telephone & Telegraph Company, is now a part of Lumen Technologies (previously CenturyLink ). On October 31, 1937, Continental Airlines , now United Airlines , moved its headquarters to Stapleton Airport in Denver, Colorado (before United Airlines later moved to its current home in Chicago ). Robert F. Six arranged to have

889-569: A claim on the bluff overlooking the confluence of the South Platte River and Cherry Creek , across the creek from the existing mining settlement of Auraria, and on the site of the existing townsite of St. Charles. Larimer named the townsite Denver City to curry favor with Kansas Territorial Governor James W. Denver . Larimer hoped the town's name would help it be selected as the county seat of Arapahoe County , but unbeknownst to him, Governor Denver had already resigned from office. The location

1016-460: A mixture of crime and poverty of a rapidly growing city. Denver citizens were proud when the rich chose Denver and were thrilled when Horace Tabor , the Leadville mining millionaire, built a business block at 16th and Larimer, as well as the elegant Tabor Grand Opera House. Luxurious hotels, including the much-loved Brown Palace Hotel , soon followed, as well as splendid homes for millionaires, such as

1143-598: A place in the top two in terms of affordability and quality of lifestyle. According to the 2020 United States census , the racial composition of Denver was as follows: Approximately 70.3% of the population (over five years old) spoke only English at home. An additional 23.5% of the population spoke Spanish at home. In terms of ancestry, 31.8% were Hispanic or Latino , 14.6% of the population were of German ancestry, 9.7% were of Irish ancestry, 8.9% were of English ancestry, and 4.0% were of Italian ancestry. There were 250,906 households, of which 23.2% had children under

1270-597: A report in the Journal of the American Medical Association , residents of Denver had a 2014 life expectancy of 80.02 years. The Denver MSA has a gross metropolitan product of $ 157.6 billion in 2010, making it the 18th largest metro economy in the United States. Denver's economy is based partially on its geographic position and its connection to some of the country's major transportation systems. Because Denver

1397-608: A revival of the Ku Klux Klan attracted white, native-born Americans who were anxious about the many changes in society. Unlike the earlier organization that was active in the rural South, KKK chapters developed in urban areas of the Midwest and West, including Denver, and into Idaho and Oregon. Corruption and crime also developed in Denver. Between 1880 and 1895, the city underwent a huge rise in corruption, as crime bosses, such as Soapy Smith , worked side by side with elected officials and

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1524-487: Is 5a with an average annual extreme minimum temperature of -15.2 °F (-26.2 °C), and 5a with an average annual extreme minimum temperature of -16.1 °F (-26.7 °C) at Beaver Meadows Visitor Center (7825 ft / 2385 m). The complex interactions of elevation, slope, exposure and regional-scale air masses determine the climate within the park, which is noted for its extreme weather patterns. A "collision of air masses" from several directions produces some of

1651-583: Is a national park of the United States located approximately 55 mi (89 km) northwest of Denver in north-central Colorado , within the Front Range of the Rocky Mountains . The park is situated between the towns of Estes Park to the east and Grand Lake to the west. The eastern and western slopes of the Continental Divide run directly through the center of the park with the headwaters of

1778-435: Is at Denver International Airport, roughly 20 miles (32 km) from downtown. A 2019 analysis showed the average temperature at Denver International Airport, 50.2 °F (10 °C), was significantly cooler than downtown, 53.0 °F (12 °C). Many of the suburbs also have warmer temperatures and there is controversy regarding the location of the official temperature readings. See or edit raw graph data . As of

1905-456: Is available. Other lakes are Jewel Lake, Mills Lake, Black Lake, Blue Lake, Lake of Glass, Sky Pond, and Spruce Lake. The Pool is a large turbulent water pocket formed below where Spruce and Fern Creeks join the Big Thompson River. The winter route is along a gravel road, which leads to a trail at the Fern Lake trailhead. Along the route are beaver-cut aspen, frozen waterfalls on the cliffs, and

2032-474: Is large throughout the year. Tornadoes are rare west of the I-25 corridor; one notable exception was an F3 tornado that struck 4.4 miles (7.1 km) south of downtown on June 15, 1988. On the other hand, the suburbs east of Denver and the city's east-northeastern extension ( Denver International Airport ) can see a few tornadoes, often weak landspout tornadoes, each spring and summer, especially during June, with

2159-402: Is named for the yellow lily, Nymphaea polysepala , on its surface. Lake Helene is at the head of Odessa Gorge, east of Notchtop Mountain. Two Rivers Lake is found along the hike to Odessa Lake from Bear Lake, and has one backcountry campsite. The Cub Lake trail passes Big Thompson River, flowery meadows, and stands of pine and aspen trees. Ice and deep snow are present during the winter, requiring

2286-400: Is one of the highest national parks in the nation, with elevations from 7,860 to 14,259 feet (2,396 to 4,346 m), the highest point of which is Longs Peak . Trail Ridge Road is the highest paved through-road in the country, with a peak elevation of 12,183 feet (3,713 m). Sixty mountain peaks over 12,000 feet (3,658 m) high provide scenic vistas. On the north side of the park,

2413-403: Is one of the most-photographed lakes and is also noted for its winter snowshoeing. Emerald Lake is located directly below the saddle between Hallett Peak and Flattop Mountain, only a short hike beyond Dream Lake. The shore of Lake Haiyaha (a Native American word for "big rocks") is surrounded by boulders along with ancient, twisted and picturesque pine trees growing out of rock crevices. Nymph Lake

2540-589: Is south of Estes Park and contains Longs Peak—the park's iconic fourteener —and the Wild Basin area. Other peaks and passes include Lily Mountain, Estes Cone, Twin Sisters, Boulder-Grand Pass, and Granite Pass. Eugenia Mine operated about the late-19th to early-20th century, with some old equipment and a log cabin remaining. Sites and trails include Boulder Field, Wild Basin Trail, and Homer Rouse Memorial Trail. Enos Mills ,

2667-717: Is surrounded by three other counties: Adams County to the north and east, Arapahoe County to the south and east, and Jefferson County to the west. Denver's nickname is the "Mile-High City", as its official elevation is one mile (5,280 ft; 1,609 m) above sea level, defined by the elevation of the spot of a benchmark on the steps of the State Capitol building. The elevation of the entire city ranges from 5,130 to 5,690 feet (1,560 to 1,730 m). The City and County of Denver has 78 official neighborhoods used for planning and administration. The system of neighborhood boundaries and names dates to 1970 when city planners divided

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2794-599: Is the largest city within 500 miles (800 km), it has become a natural location for storage and distribution of goods and services to the Mountain States , Southwest states , as well as all western states . Another benefit for distribution is that Denver is nearly equidistant from large cities of the Midwest , such as Chicago and St. Louis and some large cities of the West Coast , such as Los Angeles and San Francisco. Over

2921-683: Is the site of an abandoned silver mining town of the early 1880s located along the Colorado River Trail. According to a 1985 report prepared for the NRHP , there were only three cabin ruins remaining along with remnants of six other buildings. Baker Pass crosses the Continental Divide through the Never Summer Mountains and into the Michigan River drainage to the west of Mount Nimbus —a drainage that feeds streams and rivers that drain into

3048-476: The 18th most populous U.S. metropolitan area . Denver is the most populous city within a radius centered in the city and of 550-mile (890 km) magnitude. Denverites is a term used for residents of Denver. According to the 2020 census, the City and County of Denver contained 715,522 people and 301,501 households. The population density was 3,922.6 inhabitants per square mile (1,514.5 inhabitants/km ) including

3175-463: The 1976 Winter Olympics to coincide with Colorado's centennial celebration, but in November 1972, Colorado voters struck down ballot initiatives allocating public funds to pay for the high costs of the games. They were moved to Innsbruck , Austria. The notoriety of being the only city ever to decline to host an Olympiad after being selected has made subsequent bids difficult. The movement against hosting

3302-436: The 2020 census , the population of the City and County of Denver was 715,522, making it the 19th most populous U.S. city . The Denver–Aurora–Lakewood, CO Metropolitan Statistical Area had an estimated 2013 population of 2,697,476 and ranked as the 21st most populous U.S. metropolitan statistical area , and the larger Denver–Aurora–Boulder Combined Statistical Area had an estimated 2013 population of 3,277,309 and ranked as

3429-570: The Big Thompson Canyon Road—a section of U.S. Route 34 from Loveland to Estes Park —was completed in 1904. The 1920s saw a boom in building lodges, including the Bear Lake Trail School , and roads in the park, culminating with the construction of Trail Ridge Road to Fall River Pass between 1929 and 1932, then to Grand Lake by 1938. Prominent individuals in the effort to create a national park included Enos Mills from

3556-578: The Central Park neighborhood. MediaNews Group purchased the Denver Post in 1987; the company is based in Denver. The Gates Corporation , the world's largest producer of automotive belts and hoses, was established in S. Denver in 1919. Russell Stover Candies made its first chocolate candy in Denver in 1923, but moved to Kansas City in 1969. The original Frontier Airlines began operations at Denver's old Stapleton International Airport in 1950; Frontier

3683-584: The Colorado River located in the park's northwestern region. The main features of the park include mountains, alpine lakes and a wide variety of wildlife within various climates and environments, from wooded forests to mountain tundra . The Rocky Mountain National Park Act was signed by President Woodrow Wilson on January 26, 1915, establishing the park boundaries and protecting the area for future generations. The Civilian Conservation Corps built

3810-598: The Colorado Territory was created, Arapahoe County was formed on November 1, 1861, and Denver City was incorporated on November 7, 1861. Denver City served as the Arapahoe County Seat from 1861 until consolidation in 1902. In 1867, Denver City became the acting territorial capital , and in 1881 was chosen as the permanent state capital in a statewide ballot . With its newfound importance, Denver City shortened its name to Denver. On August 1, 1876, Colorado

3937-614: The Five Points neighborhood; Alamo Placita , the northern part of the Speer neighborhood ; Park Hill , a successful example of intentional racial integration; and Golden Triangle , in the Civic Center. One of Denver's newer neighborhoods was built on the site of Stapleton International Airport , named after former Denver mayor Benjamin F. Stapleton , a member of the Ku Klux Klan. In 2020,

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4064-480: The High Plains , at the foot of the Rocky Mountains , the region can be subject to sudden changes in weather. July is the warmest month, with an average high temperature of 89.9 °F (32.2 °C). Summers range from warm to hot with occasional, sometimes severe, afternoon thunderstorms and high temperatures reaching 90 °F (32 °C) on 38 days annually, and occasionally 100 °F (38 °C). December,

4191-473: The Mummy Range contains a number of thirteener peaks, including Hagues Peak , Mummy Mountain , Fairchild Mountain , Ypsilon Mountain , and Mount Chiquita . Several small glaciers and permanent snowfields are found in the high mountain cirques . There are five regions, or geographical zones, within the park. Region 1 is known for moose and big meadows and is located on the west, or Grand Lake, side of

4318-435: The Mummy Range . This tributary flows east, through the town of Glen Haven , where it merges with the Big Thompson River in the town of Drake , in the Big Thompson Canyon. From Lake Estes, the river descends 1 ⁄ 2 mile (800 m) in elevation through the mountains in the spectacular 25-mile (40 km) Big Thompson Canyon, emerging from the foothills west of Loveland . It flows eastward, south of Loveland across

4445-449: The Rocky Mountains to the west and the High Plains to the east. Its topography consists of plains in the city center with hilly areas to the north, west, and south. It is the only state capital in the United States that is a consolidated city-county. At the 2020 United States census , the City and County of Denver had an area of 99,025 acres (400.739 km ), including 1,057 acres (4.276 km ) of water. The City and County of Denver

4572-510: The South Platte River in 1858 during the Gold Rush era. Nicknamed the "Mile High City" because its official elevation is exactly one mile (5280 feet or 1609.344 meters) above sea level, Denver grew beyond its prospecting origins to become the principal commercial and transportation hub for a broad region spanning the Great Plains and Rocky Mountain West. The 105th meridian west of Greenwich ,

4699-415: The continental United States . In fact, Denver has had three of the top 10 costliest hailstorms in U.S. history, on July 11, 1990; July 20, 2009; and May 8, 2017. Based on 30-year averages obtained from NOAA 's National Climatic Data Center for the months of December, January and February, Weather Channel ranked Denver the 18th-coldest major U.S. city as of 2014 . Denver's official weather station

4826-681: The plains into Weld County and joins the South Platte approximately 5 mi (8.0 km) south of Greeley . It receives the Little Thompson River approximately four miles (6.4 km) upstream from its mouth. Water resources in the Big Thompson River are managed by the Northern Colorado Water Conservancy District as part of the Colorado-Big Thompson Project . On July 31, 1976, during

4953-603: The western United States , in the South Platte River Valley on the western edge of the High Plains due east of the Front Range of the Rocky Mountains . With a population of 715,522 as of the 2020 census , a 19.22% increase since 2010 , Denver is the 19th most populous city in the United States and the fifth most populous state capital. It is the principal city of the Denver–Aurora–Lakewood metropolitan statistical area , with almost 3 million people

5080-412: The 10-county Denver–Aurora–Lakewood, CO Metropolitan Statistical Area had a population of 2,963,821 and the 12-county Denver–Aurora, CO Combined Statistical Area had a population of 3,623,560 at the 2020 United States census , Denver functions as the principal city of the 18-county Front Range Urban Corridor , an oblong urban region stretching across Colorado and Wyoming with a population of 5,055,344 at

5207-455: The 112-year record available in 1976, with a discharge of 1,000 cubic meters per second (35,000 ft³/s). In 2008, a man who was thought to have died in the flood was found to be alive and living in Oklahoma. Daryle Johnson and his family had rented a cabin east of Estes Park, but left without telling anyone on the morning of July 31. A woman who was researching the flood's victims discovered he

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5334-425: The 1920s. As of 2010 , 72.28% (386,815) of Denver residents aged five and older spoke only English at home, while 21.42% (114,635) spoke Spanish, 0.85% (4,550) Vietnamese, 0.57% (3,073) African languages, 0.53% (2,845) Russian, 0.50% (2,681) Chinese, 0.47% (2,527) French, and 0.46% (2,465) German. In total, 27.72% (148,335) of Denver's population aged five and older spoke a language other than English. According to

5461-428: The 2020 U.S. census. Regarded for its sunny weather and access to nature, Denver was named the best place to live in the United States by U.S. News & World Report in 2016. The greater Denver area was inhabited by several Indigenous peoples such as Apaches , Utes , Cheyennes , Comanches , and Arapahoes . By the terms of the 1851 Treaty of Fort Laramie between the United States and various tribes including

5588-477: The 20th century. Many African Americans first came as workers on the railroad, which had a terminus in Denver, and began to settle there. Between the 1880s and 1930s, Denver's floriculture industry developed and thrived. This period became known locally as the Carnation Gold Rush . A bill proposing a state constitutional amendment to allow home rule for Denver and other municipalities was introduced in

5715-647: The Arch Rocks. The trail to Alberta Falls runs by Glacier Creek and Glacier Gorge. Wind River Trail leaves the East Portal and follows the Wind River to join with the Storm Pass trail. There are three backcountry campsites. Other sites in the area are The Loch, Loch Vale, Mill Creek Basin, Andrews Glacier, Sky Point, Timberline Falls, Upper Beaver Meadows , and Storm Pass. Region 5, known for waterfalls and backcountry,

5842-550: The Area Planning process. Denver also has a number of colloquial neighborhood names and boundaries reflecting how people in an area, or others such as community groups and real estate developers, have defined areas. Well-known non-administrative neighborhoods include the historic and trendy LoDo (short for "Lower Downtown"), part of the city's Union Station neighborhood ; Uptown, straddling North Capitol Hill and City Park West ; Curtis Park and RiNo ("River North"), both part of

5969-477: The Black Canyon trail. Region 4 is the heart of the park with easy road and trail access, great views, and lake hikes including the most popular trails. Flattop Mountain is a tundra hike and the easiest hike to the Continental Divide in the park. Crossing over Flattop Mountain, the hike to Hallett Peak passes through three climate zones, traversing the ridge that supports Tyndall Glacier and finally ascending to

6096-660: The Cheyenne and Arapaho, the United States unilaterally defined and recognized Cheyenne and Arapaho territory as ranging from the North Platte River in present-day Wyoming and Nebraska southward to the Arkansas River in present-day Colorado and Kansas . This definition specifically encompasses the land of modern Metropolitan Denver. But the discovery in November 1858 of gold in the Rocky Mountains in Colorado (then part of

6223-516: The Clouds, Haynach Lakes, Timber Lake, Lone Pine Lake, Lake Nanita, and Lake Nokoni. Region 2 is the alpine region of the park with accessible tundra trails at high elevations—an area known for its spectacular vistas. Within this region is Mount Ida, with tundra slopes and a wide-open view of the Continental Divide. Forest Canyon Pass is near the top of the Old Ute Trail that once linked villages across

6350-646: The Continental Divide. Chapin Pass trail traverses a dense forest to beautiful views of the Chapin Creek valley, proceeding onward above timberline to the western flank of Mount Chapin . Tundra Communities Trail, accessible from Trail Ridge Road, is a hike offering tundra views and alpine wildflowers. Other trails are Tombstone Ridge and Ute Trail, which starts at the tundra and is mostly downhill from Ute Crossing to Upper Beaver Meadows , with one backcountry camping site. Cache La Poudre River trail begins north of Poudre Lake on

6477-857: The Continental Divide. Thirty miles of the Continental Divide National Scenic Trail loop through the park and pass through alpine tundra and scenery. The Big Meadows area with its grasses and wildflowers can be reached via the Onahu, Tonahutu, or Green Mountain trail. Other scenic areas include Long Meadows and the Kawuneeche Valley (Coyote Valley) of the upper Colorado River which is a good place for birdwatching, as well as snowshoeing and cross-country skiing in winter. The valley trail loops through Kawuneeche Valley which contained as many as 39 mines, though less than 20 of those have archived records and archeological remains. LuLu City

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6604-493: The Croke, Patterson, Campbell Mansion at 11th and Pennsylvania and the now-demolished Moffat Mansion at 8th and Grant. Intent on transforming Denver into one of the world's great cities, leaders wooed industry and attracted laborers to work in these factories. Soon, in addition to the elite and a large middle class, Denver had a growing population of immigrant German, Italian, and Chinese laborers, soon followed by African Americans from

6731-598: The Deep South and Hispanic workers. The influx of the new residents strained available housing. In addition, the Silver Crash of 1893 unsettled political, social, and economic balances. Competition among the different ethnic groups was often expressed as bigotry, and social tensions gave rise to the Red Scare . Americans were suspicious of immigrants, who were sometimes allied with socialist and labor union causes. After World War I,

6858-640: The Denver metropolitan area with a network operation of 25 kV 60 Hz. Denver has been known historically as the Queen City of the Plains and the Queen City of the West , because of its important role in the agricultural industry of the High Plains region in eastern Colorado and along the foothills of the Colorado Front Range . Denver is in the center of the Front Range Urban Corridor , between

6985-458: The Estes Park area, James Grafton Rogers from Denver , and J. Horace McFarland of Pennsylvania . The national park was established on January 26, 1915. Rocky Mountain National Park encompasses 265,461 acres (414.78 sq mi; 1,074.28 km ) of federal land, with an additional 253,059 acres (395.40 sq mi; 1,024.09 km ) of U.S. Forest Service wilderness adjoining

7112-560: The Gulf of Mexico. Other mountain passes are La Poudre Pass and Thunder Pass, which was once used by stage coaches and is a route to Michigan Lakes. Little Yellowstone has geological features similar to the Grand Canyon of the Yellowstone . The Green Mountain trail once was a wagon road used to haul hay from Big Meadows. Flattop Mountain, which can be accessed from the eastern and western sides of

7239-522: The Leavenworth & Pike's Peak Express in order to secure the region's first overland wagon route. Offering daily service for "passengers, mail, freight, and gold", the Express reached Denver on a trail that trimmed westward travel time from twelve days to six. In 1863, Western Union furthered Denver's dominance of the region by choosing the city for its regional terminus. On February 18, 1861, six chiefs of

7366-743: The McGraw Ranch valley. Cow Creek Trail follows Cow Creek, with its many beaver ponds, extending past the Bridal Falls turnoff as the Dark Mountain trail, then joining the Black Canyon trail to intersect the Lawn Lake trail shortly below the lake. North Boundary Trail connects to the Lost Lake trail system. North Fork Trail begins outside of the park in the Comanche Peak Wilderness before reaching

7493-481: The Rockies via the Platte River . Settlers began arriving in the mid-1800s, displacing the Native Americans who mostly left the area voluntarily by 1860, while others were removed to reservations by 1878. Lulu City , Dutchtown , and Gaskill in the Never Summer Mountains were established in the 1870s when prospectors came in search of gold and silver. The boom ended by 1883 with miners deserting their claims. The railroad reached Lyons, Colorado in 1881 and

7620-399: The Southern Cheyenne and four of the Arapaho signed the Treaty of Fort Wise with the United States at Bent's New Fort at Big Timbers near what is now Lamar, Colorado . They ceded more than 90 percent of the lands designated for them by the Fort Laramie Treaty, including the area of modern Denver. Some Cheyennes opposed to the treaty, saying that it had been signed by a small minority of

7747-439: The Strategic Transportation Plan. Denver has hosted the Democratic National Convention twice, in 1908 and 2008 . It promoted the city on the national, political, and socioeconomic stage. On August 10–15, 1993, Denver hosted the Catholic Church's 6th World Youth Day , which was attended by an estimated 500,000, making it the largest gathering in Colorado history. In 2015, a new commuter railway system commenced operations in

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7874-447: The academic scientific community in cooperation with the National Park Service and the National Aeronautics and Space Administration (NASA). The stated objective: "develop and apply decision support tools that use NASA and other data and models to assess vulnerability of ecosystems and species to climate and land use change and evaluate management options." As of 2010 , the preceding one hundred years of records indicated an increase in

8001-529: The age of 18 living with them, 34.7% were married couples living together, 10.8% had a female householder with no husband present, and 50.1% were non-families. 39.3% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older. The average household size was 2.27, and the average family size was 3.14. Age distribution was 22.0% under the age of 18, 10.7% from 18 to 24, 36.1% from 25 to 44, 20.0% from 45 to 64, and 11.3% who were 65 years of age or older. The median age

8128-471: The airport. There were 338.341 housing units at an average density of 1,751 units per square mile (676 units/km ). However, the average density throughout most Denver neighborhoods tends to be higher. Without the 80249 zip code (47.3 sq mi, 8,407 residents) near the airport, the average density increases to around 5,470 per square mile. Denver, Colorado, is at the top of the list of 2017 Best Places to Live, according to U.S. News & World Report , landing

8255-406: The average annual rainfall for the area). Little rain fell over the lower section of the canyon, where many of the victims were. Around 9 p.m., a wall of water more than 6 meters (20 feet) high raced down the canyon at about 6 meters per second (13 mph), destroying 400 cars, 418 houses and 52 businesses and washing out most of U.S. Route 34 . This flood was more than 4 times as strong as any in

8382-492: The average annual temperature of approximately 3 °F (1.7 °C). The average low temperature has increased more than the average high temperature during the same time period. As a result of the temperature increase, snow is melting from the mountains earlier in the year, leading to drier summers and probably to an earlier, longer fire season. Since the 1990s, mountain pine beetles have reproduced more rapidly and have not died off at their previous mortality rate during

8509-459: The celebration of Colorado's centennial, the Big Thompson Canyon was the site of a devastating flash flood that swept down the steep and narrow canyon, claiming the lives of 143 people, 5 of whom were never found, making it the deadliest disaster in Colorado's history. This flood was triggered by a nearly stationary thunderstorm near the upper section of the canyon that dumped 300 millimeters (12 inches) of rain in less than 4 hours (more than 3/4 of

8636-427: The chiefs without the consent or approval of the rest of the tribe, that the signatories had not understood what they signed, and that they had been bribed to sign by a large distribution of gifts. The territorial government of Colorado, however, claimed the treaty was a "solemn obligation" and considered that those Indians who refused to abide by it were hostile and planning a war. Ten days later, on February 28, 1861,

8763-459: The city into 73 groups of one to four census tracts, called "statistical neighborhoods," most of which are unchanged since then. Unlike some other cities, such as Chicago , Denver does not have official larger area designations. Colloquially, names such as Northside and Westside are still in use, but not well-known. Community planners have recently been using a set of 19 larger areas, all of which are groups of statistical neighborhoods, as part of

8890-516: The coldest month of the year, has an average daily high temperature of 44 °F (6.7 °C). Winters consist of periods of snow and very low temperatures alternating with periods of milder weather due to the warming effect of Chinook winds . In winter, daytime highs occasionally exceed 60 °F (16 °C), but they also often fail to reach 32 °F (0 °C) during periods of cold weather. Occasionally, daytime highs can even fail to rise above 0 °F (−18 °C) due to arctic air masses. On

9017-430: The coldest nights of the year, lows can fall to −10 °F (−23 °C) or below, with the city experiencing a low of −24 °F (−31 °C) on December 22, 2022, with a wind chill of −40 °F (−40 °C). Snowfall is common throughout the late fall, winter and early spring, averaging 53.5 inches (136 cm) for 1981–2010; but in the 2021 winter season, Denver began the month of December without any snowfall for

9144-416: The contamination to an increase in birth defects and cancer incidence in central Denver and nearer Rocky Flats. Later studies confirmed many of his findings. Plutonium contamination was still present outside the former plant site as of August 2010 . It presents risks to building the envisioned Jefferson Parkway, which would complete Denver's automotive beltway . In 1970, Denver was selected to host

9271-509: The early 1900s. Glacial Basin was the site of a resort run by Abner and Alberta Sprague , after whom Sprague Lake is named. The lake is a shallow body of water that was created when the Spragues dammed Boulder Brook to create a fish pond . Sprague Lake is a popular place for birdwatching, hiking and viewing the mountain peaks, along with camping at the Glacier Basin campground. Dream Lake

9398-596: The elimination of surface hail, along with the higher likelihood of intense precipitation events are predicted by 2050. Droughts may be more likely due to increased temperatures, increased evaporation rates, and potential changes in precipitation. Precambrian metamorphic rock formed the core of the North American continent during the Precambrian eon 4.5–1 billion years ago. During the Paleozoic era, western North America

9525-627: The enhancement of the Denver Convergence Vorticity Zone (DCVZ). The DCVZ, also known as the Denver Cyclone, is a variable vortex of storm-forming air flow usually found north and east of downtown, and which often includes the airport. Heavy weather from the DCVZ can disrupt airport operations. In a study looking at hail events in areas with a population of at least 50,000, Denver was found to be ranked 10th most prone to hail storms in

9652-439: The first time in history. The average window for measurable (≥0.1 in or 0.25 cm) snow is October 17 through April 27; however, measurable snowfall has occurred as early as September 4 and as late as June 3. Extremes in temperature range from −29 °F (−34 °C) on January 9, 1875, up to 105 °F (41 °C) as recently as June 28, 2018. Due to the city's high elevation and aridity, diurnal temperature variation

9779-510: The games was based largely on environmental issues and was led by State Representative Richard Lamm . He was subsequently elected to three terms (1975–87) as Colorado governor . Denver explored a potential bid for the 2022 Winter Olympics , but no bid was submitted. In 2010, Denver adopted a comprehensive update of its zoning code, which was developed to guide development as envisioned in adopted plans such as Blueprint Denver, Transit Oriented Development Strategic Plan, Greenprint Denver, and

9906-487: The headquarters moved to Denver from El Paso, Texas because Six believed that the airline should have its headquarters in a large city with a potential base of customers. Continental later moved to Houston from Denver, but merged with United Airlines in 2013. Throughout that time, the company held a large employee base in the Denver area, which is home to the United Airlines Flight Training Center in

10033-476: The key weather events in the region. When cold arctic air from the north meets warm moist air from the Gulf of Mexico at the Front Range , "intense, very wet snowfalls with total snow depth measured in the feet" accumulate in the park. Higher elevation areas within the park receive twice as much precipitation as lower elevation areas, generally in the form of deep winter snowfall. Arctic conditions are prevalent during

10160-602: The lakes have backcountry campsites. Waterfalls include Ouzel Falls, Trio Falls, Copeland Falls, and Calypso Cascades. According to the Köppen climate classification system, Rocky Mountain National Park has a Subarctic climate with cool summers and year around precipitation ( Dfc ). According to the United States Department of Agriculture , the Plant Hardiness zone at Bear Lake Ranger Station (9492 ft / 2893 m)

10287-479: The legislature in 1901 and passed. The measure called for a statewide referendum, which voters approved in 1902. On December 1 that year, Governor James Orman proclaimed the amendment part of the state's fundamental law. The City and County of Denver came into being on that date and was separated from Arapahoe and Adams counties. From 1953 to 1989, the Rocky Flats Plant , a DOE nuclear weapon facility that

10414-451: The lives of three campers. The trail is a strenuous snowshoe hike in the winter. Ypsilon Lake Trail leads to its namesake as well as Chipmunk Lake, with views of Longs Peak, while traversing pine forests with grouseberry and bearberry bushes. The trail also offers views of the canyon gouged out by rampaging water that broke loose from Lawn Lake Dam in 1982. Visible is the south face of Ypsilon Mountain, with its Y-shaped gash rising sharply from

10541-546: The longitudinal reference for the Mountain Time Zone , passes directly through Denver Union Station . As the most populous metropolitan area in a 560-mile (900 km) radius, Denver is a major cultural hub with a variety of museums and cultural institutions, including the Denver Performing Arts Complex and Denver Art Museum . Denver also has sports teams in all five major professional leagues. While

10668-471: The main automobile route, Trail Ridge Road , in the 1930s. In 1976, UNESCO designated the park as one of the first World Biosphere Reserves . In 2023, 4.1 million recreational visitors entered the park. The park is one of the most visited in the National Park System, ranking as the third most visited national park in 2015. In 2019, the park saw record attendance yet again with 4,678,804 visitors,

10795-464: The main figure behind the creation of Rocky Mountain National Park, enjoyed walking to Lily Lake from his nearby cabin. Wildflowers are common in the spring and early summer. In the winter, the trail around the lake is often suitable for walking in boots, or as a short snowshoe or ski. Other lakes in the Wild Basin include Chasm Lake, Snowbank Lake, Lion Lakes 1 and 2, Thunder Lake, Ouzel Lake, Finch Lake, Bluebird Lake, Pear Lake, and Sandbeach Lake. Many of

10922-420: The montane area by early May, when wildflowers begin to bloom. Spring weather is subject to unpredictable changes in temperature and precipitation, with potential for snow along trails through May. In July and August, temperatures are generally in the 70s or 80s ° F during the day, and as low as the 40s °F at night. Lower elevations receive rain as most of their summer precipitation. Sudden dramatic changes in

11049-543: The most populous metropolitan area in Colorado. Denver is the economic and cultural center of the broader Front Range Urban Corridor , home to more than 5 million people. Denver's downtown district lies about 12 miles (19 kilometers) east of the foothills of the Rocky Mountains. Named after James W. Denver , the governor of the Kansas Territory at the time, Denver was founded at the confluence of Cherry Creek and

11176-641: The neighborhood's community association voted to change the name from Stapleton to Central Park (see more in Politics section below). The Central Park neighborhood itself has 12 "neighborhoods" within its boundaries. Denver features a continental semi-arid climate (Köppen climate classification: BSk ) with generally low humidity and around 3,100 hours of sunshine per year, although humid microclimates can be found nearby depending on exact location. It has four distinct seasons and receives most of its precipitation from April through August. Due to its inland location on

11303-482: The next 150 million years, the mountains uplifted, continued to erode, and covered themselves in their own sediment. Wind, gravity, rainwater, snow, and glacial ice eroded the granite mountains over geologic time scales . The Ancestral Rockies were eventually buried under subsequent strata. The Pierre Shale formation was deposited during the Paleogene and Cretaceous periods about 70 million years ago. The region

11430-618: The other associated with the Grand Lake area on the park's west side. The west side of the park experiences more snow, less wind, and clear cold days during the winter months. Rocky Mountain National Park was selected to participate in a climate change study, along with two other National Park Service areas in the Rocky Mountain region and three in the Appalachian Mountain region. The study began in 2011, orchestrated by members of

11557-687: The park boundaries. The Continental Divide runs generally north–south through the center of the park, with rivers and streams on the western side of the divide flowing toward the Pacific Ocean while those on the eastern side flow toward the Atlantic . A geographical anomaly is found along the slopes of the Never Summer Mountains where the Continental Divide forms a horseshoe –shaped bend for about 6 miles (9.7 km), heading from south–to–north but then curving sharply southward and westward out of

11684-579: The park boundary and ending at Lost Lake. Stormy Peaks Trail connects Colorado State University 's Pingree Park campus in the Comanche Peak Wilderness and the North Fork Trail inside the park. Beaver Mountain Loop, also used by horseback riders, passes through forests and meadows, crosses Beaver Brook and several aspen-filled drainages, and has a great view of Longs Peak. Deer Mountain Trail gives

11811-552: The park, is near Green Mountain. Shadow Mountain Lookout —a wildfire observation tower—is on the National Register of Historic Places . Paradise Park Natural Area is an essentially hidden and protected wild area with no maintained trails penetrating it. Skeleton Gulch, Cascade Falls, North Inlet Falls, Granite Falls, and Adams Falls are found in the west side of the park. The west side lakes include Bowen Lake, Lake Verna, Lake of

11938-539: The park, though some slopes are rugged and heavily glaciated, particularly around Ypsilon Mountain and Mummy Mountain . Bridal Veil Falls is a scenic point and trail accessible from the Cow Creek trailhead, at the Continental Divide Research Center. West Creek Falls and Chasm Falls, near Old Fall River Road, are also in this region. The Alluvial Fan trail leads to a bridge over the river that had been

12065-725: The park. The sharp bend results in streams on the eastern slopes of the range joining the headwaters of the Colorado River that flow south and west, eventually reaching the Pacific. Meanwhile, streams on the western slopes join rivers that flow north and then east and south, eventually reaching the Atlantic. The headwaters of the Colorado River are located in the park's northwestern region. The park contains approximately 450 miles (724 km) of rivers and streams, 350 miles (563 km) of trails, and 150 lakes. Rocky Mountain National Park

12192-527: The park. Streams and glaciations during the Quaternary period cut through the older sediment, creating mesa tops and alluvial plains, and revealing the present Rocky Mountains. The glaciation removed as much as 5,000 feet (1,500 m) of sedimentary rocks from earlier inland sea deposits. This erosion exposed the basement rock of the Ancestral Rockies. Evidence of the uplifting and erosion can be found on

12319-549: The police to control elections, gambling, and bunco gangs . The city also suffered a depression in 1893 after the crash of silver prices. In 1887, the precursor to the international charity United Way was formed in Denver by local religious leaders, who raised funds and coordinated various charities to help Denver's poor. By 1890, Denver had grown to be the second-largest city west of Omaha, Nebraska . In 1900, whites represented 96.8% of Denver's population. The African American and Hispanic populations increased with migrations of

12446-573: The population and 14.6% of families were below the poverty line. Out of the total population, 25.3% of those under the age of 18 and 13.7% of those 65 and older were living below the poverty line. Denver has one of the largest populations of Mexican-Americans in the entire United States. Approximately one third of the city is Hispanic , with the overwhelming majority of them being of Mexican descent. Many of them speak Spanish at home. English, German, Irish, Swedish, Italian, Polish, Chinese, Japanese, Greek, and Russian immigrants immigrated to Denver by

12573-428: The prosperity of the young town. The transcontinental railroad passed a daunting 100 miles (160 kilometers) away, but citizens mobilized to build a railroad to connect Denver to it. Spearheaded by visionary leaders, including Territorial Governor John Evans , David Moffat , and Walter Cheesman , fundraising began. Within three days, $ 300,000 had been raised, and citizens were optimistic. Fundraising stalled before enough

12700-572: The region began to sink while lime and mud sediments were deposited in the vacated space. Eroded granite produced sand particles that formed strata —layers of sediment—in the sinking basin. About 300 million years ago, the land was uplifted creating the ancestral Rocky Mountains. Fountain Formation was deposited during the Pennsylvanian period of the Paleozoic era, 290–296 million years ago. Over

12827-507: The reservoir being used as fill for highway repairs. The park has since been redone to accommodate the post-flood river channel and to harden it against potential future floods. The city also rebuilt its municipal electric distribution line into the canyon to replace the original 1925 transmission line and remove obsolete distribution equipment. Rocky Mountain National Park Rocky Mountain National Park

12954-465: The shoreline. Gem Lake is high among the rounded granite domes of Lumpy Ridge. Untouched by glaciation, this outcrop of 1.8 billion-year-old granite has been sculpted by wind and chemical erosion into a backbone-like ridge. Pillars, potholes, and balanced rocks are found around the midpoint of the trail, along with views of the Estes Valley and Continental Divide. Potts Puddle trail is accessible from

13081-520: The site of the Lawn Lake Flood . Lumpy Ridge Trail leads to Paul Bunyan's Boot at about 1.5 mi (2.4 km) from the trailhead, then Gem Lake, and a further 2.2 mi (3.5 km) to Balanced Rock. Black Canyon Trail intersects Cow Creek Trail, forming part of the Gem Lake loop which goes through the old McGregor Ranch valley, passing Lumpy Ridge rock formations, with a loop hike that goes into

13208-629: The summit of Hallett Peak. Bear Lake is a high-elevation lake in a spruce and fir forest at the base of Hallett Peak and Flattop Mountain. Bierstadt Lake sits atop a lateral moraine named Bierstadt Moraine, and drains into Mill Creek. There are several trails that lead to Bierstadt Lake through groves of aspens and lodgepole pines. North of Bierstadt Moraine is Hollowell Park, a large and marshy meadow along Mill Creek. The Hollowell Park trail runs along Steep Mountain's south side. Ranches, lumber and sawmill enterprises operated in Hollowell Park into

13335-457: The town to merchants and miners, with the intention of creating a major city that would cater to new immigrants. Denver City was a frontier town, with an economy based on servicing local miners with gambling, saloons, livestock, and goods trading. In the early years, land parcels were often traded for grubstakes or gambled away by miners in Auraria. In May 1859, Denver City residents donated 53 lots to

13462-499: The use of skis or snowshoes. The Fern Lake trail passes Arch Rock formations, The Pool, and the cascading water of Fern Falls. Two backcountry campsites are located near the lake, and two more are closer to the trailhead. Odessa Lake has two approaches: one is along the Flattop trail from Bear Lake while the other is from the Fern Lake trailhead, along which are Fern Creek, The Pool, Fern Falls, and Fern Lake itself. One backcountry campsite

13589-405: The way to Rocky Mountain National Park in the hogbacks of the Front Range foothills. Many sedimentary rocks from the Paleozoic and Mesozoic eras exist in the basins surrounding the park. Denver Denver ( / ˈ d ɛ n v ər / DEN -vər ) is a consolidated city and county , the capital , and most populous city of the U.S. state of Colorado . It is located in

13716-428: The weather may occur during the summer, typically due to afternoon thunderstorms that can cause as much as a 20 °F drop in temperature and windy conditions. The park's climate is also affected by the Continental Divide, which runs northwest to southeast through the center of the park atop the high peaks. The Continental Divide creates two distinct climate patterns - one typical of the east side near Estes Park and

13843-542: The west and south, with the Indian Peaks Wilderness area located directly south of the park. The history of Rocky Mountain National Park began when Paleo-Indians traveled along what is now Trail Ridge Road to hunt and forage for food . Ute and Arapaho people subsequently hunted and camped in the area. In 1820, the Long Expedition, led by Stephen H. Long for whom Longs Peak was named, approached

13970-464: The west side of the valley near Milner Pass and heads downward toward the Mummy Pass trail junction. Lake Irene is a recreation and picnic area. Region 3, known for wilderness escape, is in the northern part of the park and is accessed from the Estes Park area. The Mummy Range is a short mountain range in the north of the park. The Mummies tend to be gentler and more forested than the other peaks in

14097-449: The western Kansas Territory ) brought on a gold rush and a consequent flood of white immigration across Cheyenne and Arapaho lands. Colorado territorial officials pressured federal authorities to redefine and reduce the extent of Indian treaty lands. In the summer of 1858, during the Pike's Peak Gold Rush , a group of gold prospectors from Lawrence, Kansas , established Montana City as

14224-441: The winter months. Consequently, the increased beetle population has led to an increased rate of tree mortality in the park. The climate change study projects further temperature increases, with greater warming in the summer and higher extreme temperatures by 2050. Due to the increased temperature, there is a projected moderate increase in the rate of water evaporation. Reduced snowfall—perhaps 15% to 30% less than current amounts—and

14351-443: The winter, with sudden blizzards, high winds, and deep snowpack. High country overnight trips require gear suitable for -35 °F or below. The subalpine region does not begin to experience spring-like conditions until June. Wildflowers bloom from late June to early August. Below 9,400 feet (2,865 m), temperatures are often moderate, although nighttime temperatures are cool, as is typical of mountain weather. Spring comes to

14478-687: The years, the city has been home to other large corporations in the central United States, making Denver a key trade point for the country. Several well-known companies originated in or have relocated to Denver. William Ainsworth opened the Denver Instrument Company in 1895 to make analytical balances for gold assayers. Its factory is now in Arvada . Aimco is headquartered in Denver. Samsonite began in Denver in 1910 as Shwayder Trunk Manufacturing Company, but Samsonite closed its NE Denver factory in 2001, and moved its headquarters to Massachusetts after

14605-718: Was admitted to the Union . This disagreement on the validity of Treaty of Fort Wise escalated to bring about the Colorado War of 1864 and 1865, during which the brutal Sand Creek massacre against Cheyenne and Arapaho peoples occurred. The aftermath of the war was the dissolution of the reservation in Eastern Colorado, the signing of Medicine Lodge Treaty which stipulated that the Cheyenne and Arapaho peoples would be relocated outside of their traditional territory. This treaty term

14732-400: Was 33 years. Overall there were 102.1 males for every 100 females. Due to a skewed sex ratio wherein single men outnumber single women, some protologists had nicknamed the city as Menver . The median household income was $ 45,438, and the median family income was $ 48,195. Males had a median income of $ 36,232 versus $ 33,768 for females. The per capita income for the city was $ 24,101. 19.1% of

14859-515: Was about 15 miles from Denver, produced fissile plutonium " pits " for nuclear warheads . A major fire at the facility in 1957, as well as leakage from nuclear waste stored at the site between 1958 and 1968, resulted in the contamination of some parts of Denver , to varying degrees, with plutonium-239 , a harmful radioactive substance with a half-life of 24,200 years. A 1981 study by the Jefferson County health director, Carl Johnson, linked

14986-494: Was accessible to existing trails and was across the South Platte River from the site of seasonal encampments of the Cheyenne and Arapaho . The site of these first towns is now occupied by Confluence Park near downtown Denver. Edward W. Wynkoop came to Colorado in 1859 and became one of the city's founders. Wynkoop Street in Denver is named after him. Larimer, along with associates in the St. Charles City Land Company, sold parcels in

15113-497: Was achieved, even though the treaty was not legally ratified by the tribal members, as per the treaty's own terms. Thus, by the end of 1860s, this effectively and completely cleared the Denver area of its indigenous inhabitants. Although by the close of the 1860s Denver residents could look with pride at their success establishing a vibrant supply and service center, the decision to route the nation's first transcontinental railroad through Cheyenne City , rather than Denver, threatened

15240-440: Was also affected by deformation and erosion during that era. The uplift disrupted the older drainage patterns and created the present drainage patterns. Glacial geology in Rocky Mountain National Park can be seen from the mountain peaks to the valley floors. Ice is a powerful sculptor of this natural environment and large masses of moving ice are the most powerful tools. Telltale marks of giant glaciers can be seen all throughout

15367-515: Was covered by a deep sea—the Cretaceous Western Interior Seaway —which deposited massive amounts of shale on the seabed. Both the thick stratum of shale and embedded marine life fossils—including ammonites and skeletons of fish and such marine reptiles as mosasaurs , plesiosaurs , and extinct species of sea turtles , along with rare dinosaur and bird remains—were created during this time period. The area now known as Colorado

15494-627: Was eventually transformed from being at the bottom of an ocean to dry land again, giving yield to another fossiliferous rock layer known as the Denver Formation . At about 68 million years ago, the Front Range began to rise again due to the Laramide orogeny in the west. During the Cenozoic era, block uplift formed the present Rocky Mountains. The geologic composition of Rocky Mountain National Park

15621-522: Was raised, forcing these visionary leaders to take control of the debt-ridden railroad. Despite challenges, on June 24, 1870, citizens cheered as the Denver Pacific completed the link to the transcontinental railroad, ushering in a new age of prosperity for Denver. Finally linked to the rest of the nation by rail, Denver prospered as a service and supply center. The young city grew during these years, attracting millionaires with their mansions, as well as

15748-418: Was reincarnated at DIA in 1994. Scott's Liquid Gold, Inc., has been making furniture polish in Denver since 1954. Village Inn restaurants began as a single pancake house in Denver in 1958. Big O Tires , LLC, of Centennial opened its first franchise in 1962 in Denver. The Shane Company sold its first diamond jewelry in 1971 in Denver. In 1973 Re/Max made Denver its headquarters. Johns Manville Corp.,

15875-522: Was still alive. The canyon was just one of the many areas along the Front Range that were devastated in the September 2013 flood . While not as intense as the 1976 flood, the storms that caused the flooding in 2013 still sent enough water down the canyon to wash out the highway in many places. The flood also damaged the US Bureau of Reclamation's Dille Diversion Dam. The biggest infrastructure casualty, however,

16002-410: Was submerged beneath a shallow sea, with a seabed composed of limestone and dolomite deposits many kilometers thick. Pikes Peak granite formed during the late Precambrian eon, continuing well into the Paleozoic era, when mass quantities of molten rock flowed, amalgamated, and formed the continents about 1 billion–300 million years ago. Concurrently, in the period from 500 to 300 million years ago,

16129-648: Was the City of Loveland's hydroelectric plant (rebuilt after the 1976 flood); the Idylwilde Reservoir was completely filled with silt and rocks, the Idylwilde Dam broke free of the bedrock, and the hydroelectric plant in the Viestenz-Smith Mountain Park was filled with water and silt. The dam was in the process of being relicensed with the FERC, but it was instead demolished, the dam material and contents of

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