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Douglas Dam

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Douglas Dam is a hydroelectric dam on the French Broad River in Sevier County, Tennessee , in the southeastern United States. The dam is operated by the Tennessee Valley Authority (TVA), which built the dam in record time in the early 1940s to meet emergency energy demands at the height of World War II . Douglas Dam is a straight reinforced concrete gravity-type dam 1705 feet (520 m) long and 202 feet (62 m) high, impounding the 28,420-acre (11,500 ha) Douglas Lake . The dam was named for Douglas Bluff, a cliff overlooking the dam site prior to construction.

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117-687: The French Broad River winds its way westward from the Appalachian Mountains , gaining considerable strength after absorbing the Pigeon River and Nolichucky River near Newport before eventually joining with the Holston River at Knoxville to form the Tennessee River . Douglas Dam is located 32 miles (51 km) above the mouth of the French Broad. The area is a geological border between

234-611: A world record for a project of its size. Its first electric generator went on-line on March 21, 1943, and its second one went on-line on January 1, 1944. Its powerhouse operated at maximum capacity for most of its first year of operation. After its completion, the Douglas Dam powerhouse furnished electric power for two critical war industries, aluminum production and the Manhattan Project 's uranium enrichment operations at nearby Oak Ridge, Tennessee . The Douglas Dam powerhouse

351-593: A U.S. senator for the seventeen-day overlap before Bill Clinton's term came to an end. Established in 1912, the First Ladies Collection has been one of the most popular attractions at the Smithsonian Institution . The original exhibition opened in 1914 and was one of the first at the Smithsonian to prominently feature women. Originally focused largely on fashion, the exhibition now delves deeper into

468-635: A dam on the French Broad River in East Tennessee . After the Japanese attack on Pearl Harbor resulted in the United States entering World War II, construction of this dam became a high priority in order to generate hydroelectric power for national defense purposes. Large amounts of electricity were needed to produce aluminum and magnesium – vital metals for wartime warplane -manufacturing. When

585-463: A fragile ecosystem known as the Southern Appalachian spruce–fir forest . Fraser fir rarely occurs below 5,500 ft (1,700 m), and becomes the dominant tree type at 6,200 ft (1,900 m). By contrast, balsam fir is found from near sea level to the tree line in the northern Appalachians, but ranges only as far south as Virginia and West Virginia in the central Appalachians, where it

702-850: A global fashion icon: her style was copied by commercial manufacturers and imitated by many young women, and she was named to the International Best Dressed List Hall of Fame in 1965. Mamie Eisenhower was named one of the twelve best-dressed women in the country by the New York Dress Institute every year that she was First Lady. The "Mamie Look" involved a full-skirted dress, charm bracelets, pearls, little hats, and bobbed, banged hair. Michelle Obama also received significant attention for her fashion choices: style writer Robin Givhan praised her in The Daily Beast , arguing that

819-713: A great thickness of sediment accumulated. Eventually, the tectonic forces pulling the two continents apart became so strong that an ocean formed off the eastern coast of the Laurentian margin. This was called the Iapetus Ocean and was the precursor of the modern Atlantic Ocean. The rocks of the Valley and Ridge province formed over millions of years, in the Iapetus. Shells and other hard parts of ancient marine plants and animals accumulated to form limey deposits that later became limestone. This

936-656: A new ocean opened up, the Rheic Ocean , during the Middle to Late Devonian, and subsequently its closure would result in the formation of the Alleghanian orogeny . As the continental plates moved closer together, fragments of oceanic crust, islands, and other continental masses collided with the eastern margin of ancestral North America. By this time, plants had appeared on land, followed by scorpions, insects, and amphibians. The ocean continued to shrink until, about 270 million years ago,

1053-504: A number of deciduous rhododendrons (azaleas), and smaller heaths such as teaberry ( Gaultheria procumbens ) and trailing arbutus ( Epigaea repens ). The evergreen great rhododendron ( Rhododendron maximum ) is characteristic of moist stream valleys. These occurrences are in line with the prevailing acidic character of most oak forest soils. In contrast, the much rarer chinquapin oak ( Quercus muehlenbergii ) demands alkaline soils and generally grows where limestone rock

1170-444: A number of serious insect and disease outbreaks. Among the most conspicuous is that of the introduced spongy moth ( Lymantria dispar ), which infests primarily oaks, causing severe defoliation and tree mortality. But it also has the benefit of eliminating weak individuals, and thus improving the genetic stock, as well as creating rich habitat of a type through accumulation of dead wood. Because hardwoods sprout so readily, this moth

1287-464: A staff to support these activities. Lady Bird Johnson pioneered environmental protection and beautification. Pat Nixon encouraged volunteerism and traveled extensively abroad; Betty Ford supported women's rights; Rosalynn Carter aided those with mental disabilities; Nancy Reagan founded the Just Say No drug awareness campaign; Barbara Bush promoted literacy; Hillary Clinton sought to reform

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1404-599: A total capacity of roughly 1,461,000 acre⋅ft (1,802,000 dam) of water, of which 1,081,880 acre-feet (1,334,480 dam) is reserved for flood control. The water stored in Douglas Lake serves an important purpose during extended dry periods and droughts in East Tennessee and western North Carolina. Then, water is released from this and other dams on the upper tributaries of the Tennessee River in order to maintain an eight-foot-deep navigation channel for barges on

1521-539: A variety of oaks ( Quercus spp.), hickories ( Carya spp.) and, in the past, by the American chestnut ( Castanea dentata ). The American chestnut was virtually eliminated as a canopy species by the introduced fungal chestnut blight ( Cryphonectaria parasitica ), but lives on as sapling-sized sprouts that originate from roots, which are not killed by the fungus. In present-day forest canopies, chestnut has been largely replaced by oaks. The oak forests of

1638-512: A variety of other destructive activities continue, albeit in diminished forms; and thus far only a few ecologically based management practices have taken hold. Appalachian bogs are boreal ecosystems , which occur in many places in the Appalachians, particularly the Allegheny and Blue Ridge subranges. Though popularly called bogs , many of them are technically fens . First Lady of

1755-646: Is "section". The Appalachian Uplands are one of the seven physiographic divisions in Canada . Canada's GSC does not use the same classification system as the USGS below the division level. The agency does break the divisions of the Appalachian Uplands into 13 subsections that are in four different political provinces of Canada. While the Appalachian Highlands and Appalachian Uplands are generally continuous across

1872-682: Is a 2,175-mile (3,500 km) hiking trail that runs all the way from Mount Katahdin in Maine to Springer Mountain in Georgia , passing over or past a large part of the Appalachian range. The International Appalachian Trail is an extension of this hiking trail into the Canadian portion of the Appalachian range in New Brunswick and Quebec . While exploring inland along the northern coast of Florida in 1528,

1989-483: Is a boreal species that forms a few high elevation outliers as far south as West Virginia. All of these species except white pine tend to occupy sandy, rocky, poor soil sites, which are mostly acidic in character. White pine, a large species valued for its timber, tends to do best in rich, moist soil, either acidic or alkaline in character. Pitch pine is also at home in acidic, boggy soil, and Table Mountain pine may occasionally be found in this habitat as well. Shortleaf pine

2106-418: Is a common time for these releases, exposing the lake bottom up to several hundred feet from the shoreline and resulting in suspension of power generation when the lake reaches dead pool levels. This also helps to mitigate potential flood and overtopping conditions that could result from spring rains and meltwater from surrounding mountain streams. Another secondary purpose of the Douglas Dam and Douglas Lake

2223-479: Is a hydroelectric power producer with four large water turbines that drive four large electric generators . Their combined peak electric power -production capacity is 146,000 kilowatts . In addition to hydroelectric generation, there are several secondary purposes of the Douglas dam and reservoir. One of these is flood control for the French Broad River and also for the Tennessee River downstream. Douglas Lake has

2340-709: Is a recreational destination for up to two million visitors per year. Primary uses of the lake and its shores are fishing, boating, water skiing, swimming, camping, hiking, and wildlife observing. In addition to a number of private campgrounds in this area, TVA provides the Douglas Dam Headwater Campground and the Douglas Dam Tailwater Campground for public use. The Tennessee Wildlife Resources Agency stocks Douglas Lake with tens of thousands of sauger and crappie fish each year to thrive and then provide recreational and food fishing. One of

2457-434: Is for recreational boating , swimming, and fishing . Significant amounts of freshwater fish are caught in Douglas Lake as part of the food supply for human beings. Douglas Lake has an average of 500 miles (800 km) of shoreline, and it has an average surface area of nearly 30,000 acres (120 square kilometers), with both measurements varying according to the seasonally changing water level of Douglas Lake. Douglas Lake

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2574-403: Is found at high elevations in the northern Appalachians, and in bogs as far south as Pennsylvania. The Appalachians are also home to two species of fir, the boreal balsam fir ( Abies balsamea ), and the southern high elevation endemic, Fraser fir ( Abies fraseri ). Fraser fir is endemic to the highest parts of the southern Appalachian Mountains, where along with red spruce it forms

2691-533: Is generally found in warmer habitats and at lower elevations than the other species. All the species listed do best in open or lightly shaded habitats, although white pine also thrives in shady coves, valleys, and on floodplains. The Appalachians are characterized by a wealth of large, beautiful deciduous broadleaf (hardwood) trees. Their occurrences are best summarized and described in E. Lucy Braun 's 1950 classic, Deciduous Forests of Eastern North America (Macmillan, New York). The most diverse and richest forests are

2808-414: Is near the surface. Hence no ericaceous shrubs are associated with it. The Appalachian flora also include a diverse assemblage of bryophytes (mosses and liverworts), as well as fungi . Some species are rare and/or endemic. As with vascular plants , these tend to be closely related to the character of the soils and the thermal environment in which they are found. Eastern deciduous forests are subject to

2925-465: Is not as harmful as the hemlock woolly adelgid . Perhaps more serious is the introduced beech bark disease complex, which includes both a scale insect ( Cryptococcus fagisuga ) and fungal components. During the 19th and early 20th centuries, the Appalachian forests were subject to severe and destructive logging and land clearing, which resulted in the designation of the national forests and parks as well many state-protected areas. However, these and

3042-517: Is now the southern United States, the Ococee Basin was formed. Seawater filled the basin. Rivers from the surrounding countryside carried clay, silt, sand, and gravel to the basin, much as rivers today carry sediment from the midcontinent region to the Gulf of Mexico. The sediment spread out in layers on the basin floor. The basin continued to subside, and over a long period of time, probably millions of years,

3159-535: Is one of the provinces of the Appalachian Highlands. The Appalachian range runs from the Island of Newfoundland in Canada, 2,050 mi (3,300 km) southwestward to Central Alabama in the United States; south of Newfoundland, it crosses the 96-square-mile (248.6 km ) archipelago of Saint Pierre and Miquelon , an overseas collectivity of France , meaning it is technically in three countries. The highest peak of

3276-535: Is possible that the cratons of Kalahari , and Rio Plato , were also part of that early collision since they were present as Rodinia broke up). Mountain-building referred to as the Grenville Orogeny occurred along the boundaries of the cratons. The present Appalachian Mountains have at least two areas which are made from rock formations that were formed during this orogeny - the Blue Ridge Mountains and

3393-479: Is present today. The Appalachian Mountains are a barrier to east–west travel, as they form a series of alternating ridgelines and valleys oriented in opposition to most highways and railroads running east–west. This barrier was extremely important in shaping the expansion of the United States in the colonial era. The range is the home of a very popular recreational feature, the Appalachian Trail . This

3510-645: Is subject to the hemlock woolly adelgid ( Adelges tsugae ), an introduced insect, that is rapidly extirpating it as a forest tree. Less abundant, and restricted to the southern Appalachians, is Carolina hemlock ( Tsuga caroliniana ). Like Canada hemlock, this tree suffers severely from the hemlock woolly adelgid. Several species of pines characteristic of the Appalachians are eastern white pine ( Pinus strobus ), Virginia pine ( Pinus virginiana ), pitch pine ( Pinus rigida ), Table Mountain pine ( Pinus pungens ) and shortleaf pine ( Pinus echinata ). Red pine ( Pinus resinosa )

3627-506: Is the same process by which limestone forms in modern oceans. The weathering of limestone, now exposed at the land surface, produces the lime-rich soils that are so prevalent in the fertile farmland of the Valley and Ridge province. During this continental break-up, around 600 million to 560 million years ago, volcanic activity was present along the tectonic margins. There is evidence of this activity in today's Blue Ridge Mountains. Mount Rogers , Whitetop Mountain , and Pine Mountain are all

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3744-459: Is usually confined above 3,900 ft (1,200 m) asl, except in cold valleys. Curiously, it is associated with oaks in Virginia. The balsam fir of Virginia and West Virginia is thought by some to be a natural hybrid between the more northern variety and Fraser fir. While red spruce is common in both upland and bog habitats, balsam fir, as well as black spruce and tamarack, are more characteristic of

3861-611: The Adirondacks . After the Grenville orogeny, the direction of the continental drift reversed, and the single supercontinent Rodinia began to break up. The mountains formed during the Grenvillian era underwent erosion due to weathering, glaciation, and other natural processes, resulting in the leveling of the landscape. The eroded sediments from these mountains contributed to the formation of sedimentary basins and valleys. For example, in what

3978-581: The Coal Region of northeastern Pennsylvania . The bituminous coal fields of western Pennsylvania , western Maryland , southeastern Ohio, eastern Kentucky, southwestern Virginia , and West Virginia contain the sedimentary form of coal. The mountain top removal method of coal mining , in which entire mountain tops are removed, is currently threatening vast areas and ecosystems of the Appalachian Mountain region. The surface coal mining that started in

4095-723: The Gulf of Mexico . In the central section, north of the New River, the rivers, rising in or just beyond the Valley Ridges, flow through great gorges to the Great Valley, and then across the Blue Ridge to tidal estuaries penetrating the coastal plain via the Roanoke River, James River , Potomac River , and Susquehanna River . In the northern section the height of land lies on the inland side of

4212-704: The Iapetus Ocean , from the North America/Europe collision (See Caledonian orogeny ). By the end of the Mesozoic Era , the Appalachian Mountains had been eroded to an almost flat plain. It was not until the region was uplifted during the Cenozoic Era that the distinctive topography of the present formed. Uplift rejuvenated the streams, which rapidly responded by cutting downward into the ancient bedrock. Some streams flowed along weak layers that define

4329-484: The North American craton . Volcanoes grew along the continental margin coincident with the initiation of subduction . Thrust faulting uplifted and warped older sedimentary rock laid down on the passive margin. As the mountains rose, erosion began to wear them down over time. Streams carried rock debris downslope to be deposited in nearby lowlands. The Taconic orogeny ended after about 60 million years, but built much of

4446-447: The War of 1812 . Madison set the standard for the ladyship and her actions were the model for nearly every first lady until Eleanor Roosevelt in the 1930s. Roosevelt traveled widely and spoke to many groups, often voicing personal opinions to the left of the president's. She authored a weekly newspaper column and hosted a radio show. Jacqueline Kennedy led an effort to redecorate and restore

4563-508: The White House . Historically, when a president has been unmarried or a widower, he has usually asked a relative to act as White House hostess. While the household always had domestic staff, since the early 20th century, the first lady has been assisted by her event staff, which has grown over the years to include communications, personal, and program staff. Her office is now known as the Office of

4680-706: The eastern seaboard of the United States and the Midwest region of the country. The Eastern Continental Divide follows the Appalachian Mountains from Pennsylvania to Georgia. The Appalachians, particularly the Central and Southern regions, is one of the most biodiverse places in North America. The north–south orientation of the long ridges and valleys contributes to the high number of plant and animal species. Species were able to migrate through these from either direction during alternating periods of warming and cooling, settling in

4797-483: The inland waterway of the river from Knoxville down to its mouth at the Ohio River . If it were not for these releases of water, parts of the Tennessee River would become unnavigable. Furthermore, the water that is released is then available for all the drinking-water supplies of cities and towns downstream, and in addition, it is available for watering farms during the droughts. Intentional drawdown during winter months

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4914-1546: The mixed-mesophytic or medium-moisture types, which are largely confined to rich, moist montane soils of the southern and central Appalachians, particularly in the Cumberland and Allegheny Mountains, but also thrive in the southern Appalachian coves. Characteristic canopy species are white basswood ( Tilia heterophylla ), yellow buckeye ( Aesculus octandra ), sugar maple ( Acer saccharum ), American beech ( Fagus grandifolia ), tuliptree ( Liriodendron tulipifera ), white ash ( Fraxinus americana ) and yellow birch ( Betula alleganiensis ). Other common trees are red maple ( Acer rubrum ), shagbark and bitternut hickories ( Carya ovata and C. cordiformis ) and black or sweet birch ( Betula lenta ). Small understory trees and shrubs include paw paw ( Asimina tribola ), flowering dogwood ( Cornus florida ), hophornbeam ( Ostrya virginiana ), witch-hazel ( Hamamelis virginiana ) and spicebush ( Lindera benzoin ). There are also hundreds of perennial and annual herbs, among them such herbal and medicinal plants as American ginseng ( Panax quinquefolius ), goldenseal ( Hydrastis canadensis ), bloodroot ( Sanguinaria canadensis ) and black cohosh ( Cimicifuga racemosa ). The foregoing trees, shrubs, and herbs are also more widely distributed in less rich mesic forests that generally occupy coves, stream valleys and flood plains throughout

5031-581: The 1940s has significantly impacted the central Appalachian Mountains in Kentucky , Tennessee , Virginia and West Virginia. Early mining methods were unregulated and mined land reclamation research, including acid base reaction , was led by the West Virginia University in the 1960s and 1970s. West Virginia developed rigorous mine reclamation standards for state coal mines in the late 1960s. Regulations were introduced by most federal states to protect

5148-407: The 45 presidents of the United States have been males, and all have either had their wives, or a female hostess, assume the role of first lady. Thus, a male equivalent of the title of first lady has never been needed; in 2016, as Hillary Clinton became the first woman to win a major party's presidential nomination, questions were raised as to what her husband Bill would be titled if she were to win

5265-546: The Appalachian Basin. Some plateaus of the Appalachian Mountains contain metallic minerals such as iron and zinc . There are many geological issues concerning the rivers and streams of the Appalachians. In spite of the existence of the Great Appalachian Valley, many of the main rivers are transverse to the mountain system axis. The drainage divide of the Appalachians follows a tortuous course that crosses

5382-610: The Appalachian Mountains by the late 1960s. Social and political activism brought about the Surface Mining Control and Reclamation Act of 1977 . The 1859 discovery of commercial quantities of petroleum in the Appalachian Mountains of western Pennsylvania started the modern United States petroleum industry . Recent discoveries of commercial natural gas deposits in the Marcellus Shale formation and Utica Shale formations have once again focused oil industry attention on

5499-536: The Blue Ridge again reaches 2,000 ft (600 m) and higher. In the Virginia Blue Ridge, the following are some of the highest peaks north of the Roanoke River : Stony Man 4,031 ft (1,229 m), Hawksbill Mountain 4,066 ft (1,239 m), Apple Orchard Mountain 4,225 ft (1,288 m) and Peaks of Otter 4,001 and 3,875 ft (1,220 and 1,181 m). South of the Roanoke River, along

5616-708: The Blue Ridge, are Virginia's highest peaks including Whitetop Mountain 5,520 ft (1,680 m) and Mount Rogers 5,729 ft (1,746 m), the highest point in the Commonwealth. Chief summits in the southern section of the Blue Ridge are located along two main crests, the Western or Unaka Front along the Tennessee - North Carolina border and the Eastern Front in North Carolina, or one of several "cross ridges" between

5733-542: The Democratic presidential nominee in the 2024 presidential election . Had Harris' presidential campaign been successful, Emhoff would presumably have been granted this title. However, Harris lost the election, again rendering this a moot point. The position of the first lady is not an elected one and carries only ceremonial duties. Nonetheless, first ladies have held a highly visible position in American society. The role of

5850-516: The First Lady and is headquartered in the East Wing of the White House . Jill Biden has served as the first lady of the United States since 2021, being the wife of the 46th president, Joe Biden . Jill Biden is also one of twelve second ladies to have gone on to become first ladies during their spouses' terms as president. While the title was not in general use until much later, Martha Washington ,

5967-591: The First Lady is an entity of the White House Office, a branch of the Executive Office of the President . When First Lady Hillary Clinton decided to pursue a run for Senator of New York, she set aside her duties as first lady and moved to Chappaqua, New York , to establish state residency. She resumed her duties as first lady after winning her senatorial campaign, and retained her duties as both first lady and

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6084-803: The Foothills of the Great Smoky Mountains (which rise to the south) and the Appalachian Ridge-and-Valley range . The reservoir includes parts of Sevier, Jefferson , Hamblen , and Cocke counties. Road access is available by Tennessee State Route 338 which crosses the river just downstream of the dam. Interstate 40 (Exit 407) passes a few miles to the north. The dam is also accessed from I-40 exit 412 via Deep Springs Road and Tennessee State Route 139 . The dam does not have any navigational locks . During 1941, President Franklin D. Roosevelt requested Congress to allocate funding for

6201-820: The Great Balsams. The Western Blue Ridge Front is subdivided into the Unaka Range , the Bald Mountains , the Great Smoky Mountains , and the Unicoi Mountains , and its major peaks include Roan Mountain 6,285 ft (1,916 m) in the Unakas, Big Bald 5,516 ft (1,681 m) and Max Patch 4,616 ft (1,407 m) in the Bald Mountains, Kuwohi 6,643 ft (2,025 m), Mount Le Conte 6,593 feet (2,010 m), and Mount Guyot 6,621 ft (2,018 m) in

6318-555: The Great Smokies, and Big Frog Mountain 4,224 ft (1,287 m) near the Tennessee- Georgia -North Carolina border. Prominent summits in the cross ridges include Waterrock Knob (6,292 ft (1,918 m)) in the Plott Balsams . Across northern Georgia, numerous peaks exceed 4,000 ft (1,200 m), including Brasstown Bald , the state's highest, at 4,784-and-4,696 ft (1,458-and-1,431 m) Rabun Bald . In north-central Alabama , Mount Cheaha rises prominently to 1,445 feet (440 m) over its surroundings, as part of

6435-517: The TVA first asked Congress for the funds to construct Douglas Dam in late 1941, U.S. Senator Kenneth McKellar (D-Tennessee) opposed the project because it would flood some 40 square miles (100 km) of fertile farmland important to the local food canning industry. McKellar succeeded in blocking this project for two months, but his opposition was overridden because of national defense needs. The Office of Production Management predicted that wartime industrial production would peak in 1943, and that

6552-426: The U.S./Canadian border, the St. Lawrence Valley area is handled differently in the physiographic classification schemas. The part of the St. Lawrence Valley in the United States is one of the second-level classifications, part of the Appalachian Highlands. In Canada, the area is part of the first-level classification, the St. Lawrence Lowlands . This includes the area around the city of Montreal, Anticosti Island , and

6669-412: The United States The first lady of the United States ( FLOTUS ) is a title typically held by the wife of the president of the United States , concurrent with the president's term in office. Although the first lady's role has never been codified or officially defined, she figures prominently in the political and social life of the United States. The first lady of the United States is the hostess of

6786-402: The White House. Many first ladies became significant fashion trendsetters. Some have exercised a degree of political influence by virtue of being an important adviser to the president. Over the course of the 20th century, it became increasingly common for first ladies to select specific causes to promote, usually ones that are not politically divisive. It is common for the first lady to hire

6903-457: The adjective Appalachian is / ˌ æ p ə ˈ l æ tʃ i ə n / , with the last two syllables "-ian" pronounced as in the word "Romanian". Perhaps partly because the range runs through large portions of both the United States and Canada, and partly because the range was formed over numerous geologic time periods, one of which is sometimes termed the Appalachian orogeny , writing communities struggle to agree on an encyclopedic definition of

7020-510: The board of trustees of the National Cultural Center, the John F. Kennedy Center for the Performing Arts . Near the end of her husband's presidency , Hillary Clinton became the first first lady to seek political office, when she ran for United States Senate . During the campaign, her daughter Chelsea took over much of the first lady's role. Victorious, Clinton served as junior senator from New York from 2001 to 2009, when she resigned to become President Obama's secretary of state . Later, she

7137-482: The construction of the dam were hauled to the site by the Smoky Mountain Railroad , which had constructed a spur line to the site from nearby Sevierville . Profits from supporting the dam construction saved this railroad from bankruptcy. The Douglas Project required the construction of ten smaller, earthen saddle dams to fill in gaps along the adjacent ridgeline and permit a higher water elevation than would otherwise be possible. Most of these saddle dams are located in

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7254-457: The continent that are now exposed. The first mountain-building tectonic plate collision that initiated the construction of what are today the Appalachians occurred at least a billion years ago when the pre-North American craton called Laurentia collided with at least one other craton - Amazonia . All the other cratons of the earth also collided at about this time to form the supercontinent Rodinia and were surrounded by one single ocean. (It

7371-416: The continents that were ancestral to North America and Africa collided during the formation of the supercontinent Pangea . Because North America and Africa were once geographically connected, the Appalachians formed part of the same mountain chain as the Little Atlas in Morocco . This mountain range, known as the Central Pangean Mountains , extended into Scotland , before the Mesozoic Era opening of

7488-414: The contributions of first ladies to the and American society. In 2008, "First Ladies at the Smithsonian" opened at the National Museum of American History as part of its reopening year celebration. That exhibition served as a bridge to the museum's expanded exhibition on first ladies' history that opened on November 19, 2011. "The First Ladies" explores the unofficial but important position of first lady and

7605-412: The deciduous needle-leaf conifer, the tamarack , or eastern larch ( Larix laricina ). The dominant northern and high elevation conifer is the red spruce ( Picea rubens ), which grows from near sea level to above 4,000 ft (1,200 m) above sea level (asl) in northern New England and southeastern Canada. It also grows southward along the Appalachian crest to the highest elevations of

7722-428: The dream of the suffragettes by changing her title from First Lady to Acting First Man". According to the Nexis database, the abbreviation FLOTUS (pronounced / ˈ f l ə ʊ t ɪ s / ) was first used in 1983 by Donnie Radcliffe, writing in The Washington Post . Several women (at least thirteen) who were not presidents' wives have served as first lady, as when the president was a bachelor or widower, or when

7839-529: The driest sites are dominated by chestnut oak, or sometimes by scarlet or northern red oaks. In the northern Appalachians the oaks, except for white and northern red, drop out, while the latter extends farthest north. The oak forests generally lack the diverse small tree, shrub and herb layers of mesic forests. Shrubs are generally ericaceous , and include the evergreen mountain laurel ( Kalmia latifolia ), various species of blueberries ( Vaccinium spp.), black huckleberry ( Gaylussacia baccata ),

7956-498: The earliest known written examples comes from a November 3, 1863, diary entry of William Howard Russell , in which he referred to gossip about "the First Lady in the Land", referring to Mary Todd Lincoln . The title first gained nationwide recognition in 1877, when newspaper journalist Mary C. Ames referred to Lucy Webb Hayes as "the First Lady of the Land" while reporting on the inauguration of Rutherford B. Hayes . The frequent reporting on Lucy Hayes' activities helped spread use of

8073-440: The eight physiographic regions of the contiguous 48 United States. The Appalachian Uplands is the name of one of seven physiographic regions of Canada. The second level in the physiographic classification schema for the USGS is "province", the same word as Canada uses to divide its political subdivisions, meaning that the terminology used by the two countries do not match below the region level. The lowest level of classification

8190-474: The election, rendering this a moot point. In 2021, Kamala Harris took office as vice president, making her husband Doug Emhoff the first male spouse of a nationally elected officeholder. Emhoff assumed the title of Second Gentleman of the United States ("gentleman" replacing "lady" in the title) making it likely that any future male spouse of a president will be given the title of first gentleman. Harris would later go on to replace President Joe Biden as

8307-469: The first lady has evolved over the centuries. She is, first and foremost, the hostess of the White House. She organizes and attends official ceremonies and functions of state either along with, or in place of, the president. Lisa Burns identifies four successive main themes of the first ladyship: as public woman (1900–1929); as political celebrity (1932–1961); as political activist (1964–1977); and as political interloper (1980–2001). Martha Washington created

8424-425: The folds and faults created many millions of years earlier. Other streams downcut so rapidly that they cut right across the resistant folded rocks of the mountain core, carving canyons across rock layers and geologic structures. The Appalachian Mountains contain major deposits of anthracite coal as well as bituminous coal . In the folded mountains the coal is in metamorphosed form as anthracite , represented by

8541-443: The formation of the Appalachian Mountains started 1.1 billion years ago. The first mountain range in the region was created when the continents of Laurentia and Amazonia collided, creating a supercontinent called Rodinia . The collision of these continents caused the rocks to be folded and faulted, creating the first mountains in the region. Many of the rocks and minerals that were formed during that event can currently be seen at

8658-454: The generating capacity of existing and planned TVA projects would be short by 230,000 kilowatts of electric power . Congress approved the project in January 1942 and President Roosevelt signed the bill into law on January 30, 1942. Construction began immediately on February 2 as a rush project, and it used blueprints , civil engineers , construction workers , and construction machinery from

8775-459: The healthcare system in the U.S.; Laura Bush supported women's rights groups, and encouraged childhood literacy. Michelle Obama became identified with supporting military families and tackling childhood obesity; and Melania Trump used her position to help children, including prevention of cyberbullying and support for those whose lives are affected by drugs. Since 1964, the incumbent and all living former first ladies are honorary members of

8892-457: The hills southeast of the main dam. One protects downtown Dandridge, Tennessee , which along with the communities of Shady Grove, Oak Grove, and Rankin, was originally scheduled to be flooded by the reservoir behind the dam. However, the citizens of Dandridge appealed to the First Lady , Eleanor Roosevelt , noting that this town was the only place in the United States named for Martha Washington ,

9009-480: The land mass that is now New England and southwestward to Pennsylvania. The Taconic Orogeny was the second of four mountain building plate collisions that contributed to the formation of the Appalachians, culminating in the collision of North America and Africa (see Alleghanian orogeny ). The third mountain-building event was the Acadian orogeny which occurred between 375 and 359 million years ago. The Acadian orogeny

9126-469: The latter. However, balsam fir also does well in soils with a pH as high as 6. Eastern or Canada hemlock ( Tsuga canadensis ) is another important evergreen needle-leaf conifer that grows along the Appalachian chain from north to south but is confined to lower elevations than red spruce and the firs. It generally occupies richer and less acidic soils than the spruce and firs and is characteristic of deep, shaded and moist mountain valleys and coves . It

9243-572: The members of the Narváez expedition , including Álvar Núñez Cabeza de Vaca , found a Native American village near present-day Tallahassee, Florida whose name they transcribed as Apalchen or Apalachen [a.paˈla.tʃɛn] . The name was soon altered by the Spanish to Apalachee and used as a name for the tribe and region spreading well inland to the north. Pánfilo de Narváez 's expedition first entered Apalachee territory on June 15, 1528, and applied

9360-528: The microclimates that best suited them. The flora of the Appalachians are diverse and vary primarily in response to geology, latitude, elevation and moisture availability. Geobotanically, they constitute a floristic province of the North American Atlantic Region . The Appalachians consist primarily of deciduous broad-leaf trees and evergreen needle-leaf conifers, but also contain the evergreen broad-leaf American holly ( Ilex opaca ), and

9477-752: The more notable peaks in West Virginia. The Blue Ridge Mountains , rising in southern Pennsylvania and there known as South Mountain , attain elevations of about 2,000 ft (600 m) in Pennsylvania. South Mountain achieves its highest point just below the Mason-Dixon line in Maryland at Quirauk Mountain 2,145 ft (654 m) and then diminishes in height southward to the Potomac River . Once in Virginia ,

9594-638: The mountain range is Mount Mitchell in North Carolina at 6,684 feet (2,037 m), which is also the highest point in the United States east of the Mississippi River . The range is older than the other major mountain range in North America, the Rocky Mountains of the west. Some of the outcrops in the Appalachians contain rocks formed during the Precambrian era. The geologic processes that led to

9711-607: The mountain range, and its surrounding terrain. The general definition used is one followed by the United States Geological Survey and the Geological Survey of Canada to describe the respective countries' physiographic regions. The U.S. uses the term Appalachian Highlands and Canada uses the term Appalachian Uplands ; the Appalachian Mountains are not synonymous with the Appalachian Plateau , which

9828-410: The mountain range. However, each of the governments has an agency that informs the public about the major landforms that make up the countries, the United States Geological Survey (USGS) and the Geological Survey of Canada (GSC). The landforms are referred to as physiographic regions. The regions create precise boundaries from which maps can be drawn. The Appalachian Highlands is the name of one of

9945-636: The mountainous belt just north of the New River in Virginia. South of the New River, rivers head into the Blue Ridge, cross the higher Unakas, receive important tributaries from the Great Valley, and traversing the Cumberland Plateau in spreading gorges ( water gaps ), escape by way of the Cumberland River and the Tennessee River rivers to the Ohio River and the Mississippi River, and thence to

10062-538: The mountainous belt, and thus the main lines of drainage run from north to south, exemplified by the Hudson River . However, the valley through which the Hudson River flows was cut by the gigantic glaciers of the ice ages —the same glaciers that deposited their terminal moraines in southern New York and formed the east–west Long Island . The Appalachian region is generally considered the geographical divide between

10179-475: The name. Now spelled "Appalachian", it is the fourth-oldest surviving European place-name in the US. After the 1540 expedition of Hernando de Soto , Spanish cartographers began to apply the name of the tribe to the mountains themselves. The first cartographic appearance of Apalchen is on Diego Gutiérrez 's map of 1562; the first use for the mountain range is the map of Jacques le Moyne de Morgues in 1565. The name

10296-431: The nation still preserved the habits of early life. Indulging in no indolence, she left the pillow at dawn, and after breakfast, retired to her chamber for an hour for the study of the scriptures and devotion." According to popular belief, Dolley Madison was referred to as first lady in 1849 at her funeral in a eulogy delivered by President Zachary Taylor ; however, no written record of this eulogy exists, nor did any of

10413-428: The nearby Cherokee Dam , which had been completed a few weeks earlier in late 1941. The construction of the Douglas Dam and its accompanying reservoir required the purchase of 33,160 acres (13,420 ha) of land, 5,182 acres (2,097 ha) of which were forested and had to be cleared. This project also required the relocation of 525 families and 32 cemeteries, and the rerouting of several miles of roads. Supplies for

10530-471: The newspapers of her day refer to her by that title. Sometime after 1849, the title began being used in Washington, D.C., social circles. The first person to have the title applied to her while she was actually holding the office was Harriet Lane , the niece of James Buchanan ; Leslie's Illustrated Newspaper used the phrase to describe her in an 1860 article about her duties as White House hostess. Another of

10647-531: The northwest coastline of Newfoundland. The dissected plateau area, while not actually made up of geological mountains, is popularly called "mountains", especially in eastern Kentucky and West Virginia, and while the ridges are not high, the terrain is extremely rugged. In Ohio and New York, some of the plateau has been glaciated , which has rounded off the sharp ridges and filled the valleys to some extent. The glaciated regions are usually referred to as hill country rather than mountains. The Appalachian belt includes

10764-424: The oceans, but there were no plants or animals on land. Then, during the middle Ordovician Period about 500 to 470 million years ago, the motion of the crustal plates changed, and the continents began to move back toward each other. The once-quiet Appalachian passive margin changed to a very active plate boundary when a neighboring Iapetus oceanic plate containing a volcanic arc collided with and began sinking beneath

10881-704: The plateaus sloping southward to the Atlantic Ocean in New England , and southeastward to the border of the coastal plain through the central and southern Atlantic states; and on the northwest, the Allegheny and Cumberland plateaus declining toward the Great Lakes and the interior plains. A remarkable feature of the belt is the longitudinal chain of broad valleys, including the Great Appalachian Valley , which in

10998-482: The presidency. During the campaign, the title of First Gentleman of the United States was most frequently suggested for Bill Clinton, although as a former president himself, he might have been called "Mr. President". In addition, state governors' male spouses are typically called the first gentleman of their respective state (for example, Michael Haley was the first gentleman of South Carolina while his wife, Nikki , served as governor). Ultimately, Hillary Clinton lost

11115-480: The problems of hydroelectric dams is the periodic reduction of dissolved oxygen in the tailwaters downstream of the dam. Three systems are used at Douglas Dam to improve oxygenation. Appalachian Mountains The Appalachian Mountains , often called the Appalachians , are a mountain range in eastern to northeastern North America . The term "Appalachian" refers to several different regions associated with

11232-482: The result of volcanic activity that occurred around this time. Evidence of subsurface activity, dikes and sills intruding into the overlying rock, is present in the Blue Ridge as well. For instance, mafic rocks have been found along the Fries Fault in the central Blue Ridge area of Montgomery County, VA. The Iapetus continued to expand and during that time bacteria, algae, and many species of invertebrates flourished in

11349-673: The role and hosted many affairs of state at the national capital (New York and Philadelphia). This socializing became known as the Republican Court and provided elite women with opportunities to play backstage political roles. Both Martha Washington and Abigail Adams were treated as if they were "ladies" of the British royal court. Dolley Madison popularized the first ladyship by engaging in efforts to assist orphans and women, by dressing in elegant fashions and attracting newspaper coverage, and by risking her life to save iconic treasures during

11466-706: The same side of the Great Valley, south of the Potomac, are the Pinnacle 3,007 feet (917 m) and Pidgeon Roost 3,400 ft (1,000 m). In West Virginia, more than 150 peaks rise above 4,000 ft (1,200 m), including Spruce Knob 4,863 ft (1,482 m), the highest point in the Allegheny Mountains . A number of other points in the state rise above 4,800 ft (1,500 m). Cheat Mountain ( Snowshoe Mountain ) at Thorny Flat 4,848 ft (1,478 m) and Bald Knob 4,842 ft (1,476 m) are among

11583-409: The same trend as the system itself. None of the summits reaches the region of perpetual snow. In Pennsylvania , there are over sixty summits that rise over 2,500 ft (800 m); the summits of Mount Davis and Blue Knob rise over 3,000 ft (900 m). In Maryland, Eagle Rock and Dans Mountain are conspicuous points reaching 3,162 and 2,882 ft (964 and 878 m) respectively. On

11700-481: The southerly sections divides the mountain system into two unequal portions, but in the northernmost lies west of all the ranges possessing typical Appalachian features, and separates them from the Adirondack group. The mountain system has no axis of dominating altitudes, but in every portion, the summits rise to rather uniform heights, and, especially in the central section, the various ridges and intermontane valleys have

11817-416: The southern Appalachians, as in North Carolina and Tennessee . In the central Appalachians it is usually confined above 3,000 ft (900 m) asl, except for a few cold valleys in which it reaches lower elevations. In the southern Appalachians, it is restricted to higher elevations. Another species is the black spruce ( Picea mariana ), which extends farthest north of any conifer in North America,

11934-413: The southern and central Appalachians consist largely of black , northern red , white , chestnut and scarlet oaks ( Quercus velutina, Q. rubra, Q. alba, Q. prinus and Q. coccinea ) and hickories, such as the pignut ( Carya glabra ) in particular. The richest forests, which grade into mesic types, usually in coves and on gentle slopes, have predominantly white and northern red oaks, while

12051-511: The southern and central Appalachians at low and intermediate elevations. In the northern Appalachians and at higher elevations of the central and southern Appalachians these diverse mesic forests give way to less diverse northern hardwood forests with canopies dominated only by American beech, sugar maple, American basswood ( Tilia americana ) and yellow birch and with far fewer species of shrubs and herbs. Drier and rockier uplands and ridges are occupied by oak–chestnut forests dominated by

12168-535: The southernmost spur of the Blue Ridge Mountains. Sources written prior to the recognition of the concept of physiographic regions divided the Appalachian Mountains into three major sections: Plate tectonics over the period dating back at least 1 billion years led to geological creation of the land that is now the Appalachian Mountain range. The continental movement led to collisions that built mountains and they later pulled apart creating oceans over parts of

12285-495: The surface of the present Appalachian range. Around 480 million years ago, geologic processes began that led to three distinct orogenic eras that created much of the surface structure seen in today's Appalachians. During this period, mountains once reached elevations similar to those of the Alps and the Rockies before natural erosion occurred over the last 240 million years leading to what

12402-411: The third syllable sounding like "latch". In northern parts of the mountain range, it is pronounced / ˌ æ p ə ˈ l eɪ tʃ ɪ n z / or / ˌ æ p ə ˈ l eɪ ʃ ɪ n z / ; the third syllable is like "lay", and the fourth "chins" or "shins". There is often great debate between the residents of the regions regarding the correct pronunciation. Elsewhere, a commonly accepted pronunciation for

12519-565: The title outside Washington. A popular 1911 comedic play about Dolley Madison by playwright Charles Nirdlinger, titled The First Lady in the Land , popularized the title further. By the 1930s, it was in wide use. Use of the title later spread from the United States to other nations. When Edith Wilson took control of her husband's schedule in 1919 after he had a debilitating stroke, one Republican senator labeled her "the Presidentress who had fulfilled

12636-607: The two main crests. Major subranges of the Eastern Front include the Black Mountains , Great Craggy Mountains , and Great Balsam Mountains , and its chief summits include Grandfather Mountain 5,964 ft (1,818 m) near the Tennessee-North Carolina border, Mount Mitchell 6,684 ft (2,037 m) in the Blacks, and Black Balsam Knob 6,214 ft (1,894 m) and Cold Mountain 6,030 ft (1,840 m) in

12753-496: The use of such titles as "Lady", "Mrs. President" and "Mrs. Presidentress"; Martha Washington was often referred to as "Lady Washington". One of the earliest uses of the term "First Lady" was applied to her in an 1838 newspaper article that appeared in the St. Johnsbury Caledonian , the author, " Mrs. Sigourney ", discusses how Martha Washington had not changed, even after her husband George became president. She wrote that "The first lady of

12870-530: The ways that different women have shaped the role to make their own contributions to the presidential administrations and the nation. The exhibition features 26 dresses and more than 160 other objects, ranging from those of Martha Washington to Michelle Obama , and includes White House china , personal possessions and other objects from the Smithsonian's unique collection of first ladies' materials. Some first ladies have garnered attention for their dress and style. Jacqueline Kennedy Onassis , for instance, became

12987-522: The wife of George Washington , the first U.S. president (1789–1797), is the first First Lady of the United States. During her lifetime, she was often referred to as "Lady Washington". Since the 1900s, the role of first lady has changed considerably. It has come to include involvement in political campaigns, management of the White House, championship of social causes, and representation of the president at official and ceremonial occasions. Additionally, over

13104-425: The wife of the first president George Washington . Mrs. Roosevelt ensured that a saddle dam was built to protect Dandridge from flooding. The saddle dam was built of earthen fill, and reinforced on its lakeside by gravel and riprap . In spite of a four-week work delay caused by flooding, the Douglas Dam was completed and its floodgates were closed on February 19, 1943, 382 days after the construction began; this set

13221-606: The wife of the president was unable to fulfill the duties of the first lady herself. In these cases, the position has been filled by a female relative of the president, such as Jefferson's daughter Martha Jefferson Randolph , Jackson's daughter-in-law Sarah Yorke Jackson and his wife's niece Emily Donelson , Taylor 's daughter Mary Elizabeth Bliss , Benjamin Harrison 's daughter Mary Harrison McKee , Buchanan's niece Harriet Lane , Chester A. Arthur 's sister Mary Arthur McElroy and Cleveland's sister Rose Cleveland . Each of

13338-482: The years individual first ladies have held influence in a range of sectors, from fashion to public opinion on policy, as well as advocacy for female empowerment . The use of the title First Lady to describe the spouse or hostess of an executive began in the United States. In the early days of the republic, there was not a generally accepted title for the wife of the president. Many early first ladies expressed their own preference for how they were addressed, including

13455-639: Was caused by a series of collisions of pieces of crust from the Avalonia Terrane, sections broken off from continent of Gondwana , with the North American Plate. The collision initiating this orogeny resulted in the closing of the southern Iapetus Ocean and the formation of a high mountain belt. After the Acadian collision took place, Gondwana began to retreat from Laurentia with the newly accreted Avalonian terranes left behind. As Gondwana moved away,

13572-442: Was not commonly used for the whole mountain range until the late 19th century. A competing and often more popular name was the "Allegheny Mountains", "Alleghenies", and even "Alleghania". In the early 19th century, Washington Irving proposed renaming the United States either Appalachia or Alleghania. In U.S. dialects in the southern regions of the Appalachians, the word is pronounced / ˌ æ p ə ˈ l æ tʃ ɪ n z / , with

13689-541: Was the Democratic Party nominee for president in the 2016 election , but lost to Donald Trump . The Office of the First Lady of the United States is accountable to the first lady for her to carry out her duties as hostess of the White House, and is also in charge of all social and ceremonial events of the White House. The first lady has her own staff that includes a chief of staff, press secretary, White House social secretary , and chief floral designer . The Office of

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