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46-461: The mountainous terrain has deep, winding, open and expansive canyons, many of which contain springs with extensive riparian vegetation. This area is a transition zone between the Great Basin , Mojave Desert and Sierra Nevada ecoregions . Vegetation varies considerably with a creosote desert scrub community on the bajadas , scattered yuccas , cacti , annuals, cottonwood and oak trees in

92-663: A moisture channel extending from the Pacific Ocean to Yellowstone. Moisture from the Pacific Ocean streams onshore in the form of clouds and humid air. It passes through the gap between the Sierra and Cascades and into the Snake River Plain where it is channeled through most of the Rocky Mountains with no high plateaus or mountain ranges to impede its progress. It finally encounters upslope conditions at

138-772: A language in the Numic language group. To close a 1951 Indian Claims Commission case, the Western Shoshone Claims Distribution Act of 2004 established the United States payment of $ 117 million to the Great Basin tribe for the acquisition of 39,000 square miles (100,000 km ). European exploration of the Great Basin occurred during the 18th century Spanish colonization of the Americas . The first immigrant American to cross

184-484: Is a geologic feature located primarily within the U.S. state of Idaho . It stretches about 400 miles (640 km) westward from northwest of the state of Wyoming to the Idaho- Oregon border. The plain is a wide, flat bow-shaped depression and covers about a quarter of Idaho. Three major volcanic buttes dot the plain east of Arco , the largest being Big Southern Butte . Most of Idaho's major cities are in

230-561: Is a problem in some areas. Great Basin The Great Basin ( Spanish : Gran Cuenca ) is the largest area of contiguous endorheic watersheds , those with no outlets to the ocean, in North America . It spans nearly all of Nevada , much of Utah , and portions of California , Idaho , Oregon , Wyoming , and Baja California . It is noted for both its arid climate and the basin and range topography that varies from

276-664: Is defined by plant and animal communities, and, according to the National Park Service , its boundaries approximate the hydrographic Great Basin but exclude the southern " panhandle ". The Great Basin Province was defined by botanist Armen Takhtajan to extend well beyond the boundaries of the hydrographically defined Great Basin: it includes the Snake River Plain , the Colorado Plateau ,

322-551: Is nicknamed "The Loneliest Road in America", and Nevada State Route 375 is designated the "Extraterrestrial Highway". The Great Basin is traversed by several rail lines including the Union Pacific Railroad 's Overland Route (Union Pacific Railroad) through Reno and Ogden , Feather River Route , Central Corridor and Los Angeles and Salt Lake Railroad . There has been a succession of indigenous peoples of

368-471: Is part of the Great Basin's central Lahontan subregion. The hydrographic Great Basin contains multiple deserts and ecoregions , each with its own distinctive set of flora and fauna. The ecological boundaries and divisions in the Great Basin are unclear. The Great Basin overlaps four different deserts: portions of the hot Mojave and Colorado (a region within the Sonoran Desert ) Deserts to

414-529: Is slightly misleading; the region comprises many small basins. The Great Salt Lake , Pyramid Lake , and the Humboldt Sink are a few of the "drains" in the Great Basin. The Salton Sink is another closed basin within the Great Basin. The Great Basin Divide separates the Great Basin from the watersheds draining to the Pacific Ocean. The southernmost portion of the Great Basin is the watershed area of

460-522: Is the result of extension and thinning of the lithosphere , which is composed of crust and upper mantle . Extensional environments like the Basin and Range are characterized by listric normal faulting , or faults that level out with depth. Opposing normal faults link at depth producing a horst and graben geometry, where horst refers to the upthrown fault block and graben to the down dropped fault block. Sediment build-up over thousands of years filled

506-599: The Cui-ui sucker fish (endangered 1967) and the Lahontan cutthroat trout (threatened 1970). Large invertebrates include tarantulas (genus Aphonopelma ) and Mormon crickets . Exotic species, including chukar , grey partridge , and Himalayan snowcock , have been successfully introduced to the Great Basin, although the latter has only thrived in the Ruby Mountains . Cheatgrass , an invasive species which

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552-643: The Great Basin fence lizard , longnose leopard lizard and horned lizard are common, especially in lower elevations. Rattlesnakes and gopher snakes are also present. The Inyo Mountains salamander is endangered. Shorebirds such as phalaropes and curlews can be found in wet areas. American white pelicans are common at Pyramid Lake . Golden eagles are also very common in the Great Basin. Mourning dove , western meadowlark , black-billed magpie , and common raven are other common bird species. Two endangered species of fish are found in Pyramid Lake:

598-698: The Laguna Salada . The Great Basin's longest and largest river is the Bear River of 350 mi (560 km), and the largest single watershed is the Humboldt River drainage of roughly 17,000 sq mi (44,000 km ). Most Great Basin precipitation is snow, and the precipitation that neither evaporates nor is extracted for human use will sink into groundwater aquifers , while evaporation of collected water occurs from geographic sinks . Lake Tahoe , North America's largest alpine lake ,

644-685: The Uinta Basin , and parts of Arizona north of the Mogollon Rim . The Great Basin physiographic section is a geographic division of the Basin and Range Province defined by Nevin Fenneman in 1931. The United States Geological Survey adapted Fenneman's scheme in their Physiographic division of the United States . The "section" is somewhat larger than the hydrographic definition. The Great Basin culture area , or indigenous peoples of

690-546: The Yellowstone hotspot , now centered in Yellowstone National Park . The eastern plain is a topographic depression that cuts across Basin and Range mountain structures, more or less parallel to North American Plate motion. It is underlain almost entirely by basalt erupted from large shield volcanoes . Beneath the basalts are rhyolite lavas and ignimbrites that erupted as the lithosphere passed over

736-535: The Basin and Range Province contains the Great Basin, but extends into eastern Oregon , southern Idaho , and the Colorado River watershed and the northwest corner of Arizona ). The Basin and Range region is the product of geological forces stretching the Earth's crust, creating many north–south trending mountain ranges. These ranges are separated by flat valleys or basins. These hundreds of ranges make Nevada

782-564: The Fremont built small villages and grew crops like corn and squash. Seven hundred years ago, the Shoshone inhabited the area after the Fremont. They were hunter-gathers and lived in temporary homes to be able to follow animal herds and collect plants. Now, Shoshone descendants live in nearby areas. Other tribes in the area included the Ute , Mono , and Northern Paiute . All of the tribes speak

828-515: The Great Basin , is a cultural classification of indigenous peoples of the Americas and a cultural region located between the Rocky Mountains and the Sierra Nevada. The culture area covers approximately 400,000 sq mi (1,000,000 km ), or just less than twice the area of the hydrographic Great Basin. The hydrographic Great Basin is a 209,162-square-mile (541,730 km ) area that once drained internally. All precipitation in

874-466: The Great Basin . Paleo-Indian habitation by the Great Basin tribes began as early as 10,000 B.C. . Archaeological evidence of habitation sites along the shore of Lake Lahontan date from the end of the ice age when its shoreline was approximately 500 feet (150 m) higher along the sides of the surrounding mountains. The Paleo-Indians were mainly hunters and hunted bison, the extinct mammoth, and extinct ground sloth. For housing, since they followed

920-711: The Great Basin from the Sierra Nevada was Jedediah Strong Smith in 1827. Peter Skene Ogden of the British Hudson's Bay Company explored the Great Salt Lake and Humboldt River regions in the late 1820s, following the eastern side of the Sierra Nevada to the Gulf of California. Benjamin Bonneville explored the northeast portion during an 1832 expedition . The United States had acquired claims to

966-745: The Great Basin into three ecoregions roughly according to latitude: the Northern Basin and Range ecoregion , the Central Basin and Range ecoregion , and the Mojave Basin and Range ecoregion . Great Basin wildlife includes pronghorn , mule deer , mountain lion , and lagomorphs such as black-tailed jackrabbit and desert cottontail and the coyotes that prey on them. Packrats , kangaroo rats and other small rodents are also common, and are predominantly nocturnal. Elk and bighorn sheep are present but uncommon. Small lizards such as

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1012-660: The Moon National Monument . The Snake River Plain has a significant effect on the climate of Yellowstone National Park and the adjacent areas to the south and west of Yellowstone. Over time, the Yellowstone hotspot left a 70-mile (110 km) wide channel through the Rocky Mountains . This channel is in line with the gap between the Cascade Range and the Sierra Nevada . The result is

1058-579: The North American low point at Badwater Basin in Death Valley to the highest point of the contiguous United States , less than 100 miles (160 km) away at the summit of Mount Whitney . The region spans several physiographic divisions, biomes , ecoregions , and deserts . The term "Great Basin" is applied to hydrographic , biological , floristic , physiographic, topographic , and ethnographic geographic areas. The name

1104-444: The Snake River Plain, as is much of its agricultural land. The Snake River Plain can be divided into three sections: western, central, and eastern. The western Snake River Plain is a large tectonic graben or rift valley filled with several kilometers of lacustrine (lake) sediments; the sediments are underlain by rhyolite and basalt , and overlain by basalt. The western plain began to form around 11–12 Ma (million years ago) with

1150-665: The Snake River Valley, the Tetons, and the Yellowstone Plateau receive much more precipitation than other areas of the region, and the area is known for being wet, green, having many streams, and having abundant snow in winter. Although the topography of the Plain has largely gone unchanged for several million years, this region's climate has not been so constant. Current climatic conditions began to characterize

1196-615: The animals they were hunting, they had no permanent villages. The next group to live in the area was the Great Basin Desert Archaic, from approximately 9,000 to 1,500 years ago. They hunted animals like mule deer and antelope and gathered onions, wild rye, and pinyon pine nuts. Then, from 1,500 to 700 years ago, the Fremont lived in the area. Unlike the Paleo-Indians, who moved around to follow bison herds,

1242-486: The basin experiences a semi-arid or arid climate with warm summers and cold winters. However, some of the mountainous areas in the basin are high enough in elevation to experience an alpine climate . Due to the region's altitude and aridity, most areas in the Great Basin experience a substantial diurnal temperature variation . Snake River Plain 43°00′N 113°30′W  /  43.000°N 113.500°W  / 43.000; -113.500 The Snake River Plain

1288-423: The canyons and valleys and a juniper - pinyon woodland with sagebrush and digger / gray pine on the upper elevations. Wildlife includes mule deer , golden eagle and prairie falcon . Evidence of occupation by prehistoric peoples has been found throughout the wilderness. The Pacific Crest Trail passes through the wilderness along the crest and western side. Starting in 1992, an ongoing effort to restore

1334-687: The down-faulted basins between ranges and created relatively flat lacustrine plains from Pleistocene lake beds of the Great Basin. For example, after forming about 32,000 years ago , Lake Bonneville overflowed about 14,500 years ago in the Bonneville Flood through Red Rock Pass and lowered to the "Provo Lake" level (the Great Salt Lake , Utah Lake , Sevier Lake , Rush Lake , and Little Salt Lake remain). Lake Lahontan , Lake Manly , and Lake Mojave were similar Pleistocene lakes. The Great Basin physiographic section of

1380-733: The eastern regions of the 1848 California Gold Rush , with its immigrants crossing the Great Basin on the California Trail along Nevada's Humboldt River to Carson Pass in the Sierras. The Oregon Territory was established in 1848 and the Utah Territory in 1850. In 1869 the First transcontinental railroad was completed at Promontory Summit in the Great Basin. Around 1902, the San Pedro, Los Angeles and Salt Lake Railroad

1426-402: The elevation increases, the temperature decreases and precipitation increases. Because of this, forests can occur at higher elevations. Utah juniper / single-leaf pinyon (southern regions) and mountain mahogany (northern regions) form open pinyon-juniper woodland on the slopes of most ranges. Stands of limber pine and Great Basin bristlecone pine ( Pinus longaeva ) can be found in some of

Owens Peak Wilderness - Misplaced Pages Continue

1472-637: The environment in both the Kiavah and Owens Peak wilderness areas is being conducted by the University of California, Davis , Student Conservation Corps. By March 1997, 15 miles (24 km) of closed roads had been restored by relieving soil compaction with hand tools or a dozer-drawn ripper, installing waterbars , placing vertical mulch (woody debris and rocks) and scarifying disturbed area surfaces to increase water absorption and seed collection. Despite continued monitoring, illegal off-highway vehicle (OHV) use

1518-537: The eruption of rhyolite lavas and ignimbrites . The western plain is not parallel to North American Plate motion and lies at a high angle to the central and eastern Snake River Plains. Its morphology is similar to other volcanic plateaus such as the Chilcotin Group in south-central British Columbia , Canada. The eastern Snake River Plain traces the path of the North American Plate over

1564-589: The head of the Snake River Valley at Ashton, Idaho ; at Island Park, Idaho ; at the Teton Range east of Driggs, Idaho ; and at the Yellowstone Plateau of Yellowstone National Park where the channeled moisture precipitates out as rain and snow. The result is a localized climate on the eastern side of the Rockies that is akin to a climate on the west slope of the Cascades or the northern Sierra. The head of

1610-517: The higher ranges. In riparian areas with dependable water cottonwoods ( Populus fremontii ) and quaking aspen ( Populus tremuloides ) groves exist. Because the forest ecosystem is distinct from a typical desert, some authorities, such as the World Wildlife Fund , separate the mountains of the Great Basin desert into their own ecoregion: the Great Basin montane forests . Many rare and endemic species occur in this ecoregion, because

1656-548: The hotspot. The central Snake River plain is similar to the eastern plain but differs by having thick sections of interbedded lacustrine (lake) and fluvial (stream) sediments, including the Hagerman fossil beds . Island Park and Yellowstone Calderas formed as the result of enormous rhyolite ignimbrite eruptions, with single eruptions producing up to 600 cubic miles (2,500 km ) of ash. Henry's Fork Caldera , measuring 18 miles (29 km) by 23 miles (37 km), may be

1702-598: The individual mountain ranges are isolated from each other. During the Last Glacial Period , the Great Basin was wetter. As it dried during the Holocene epoch, some species retreated to the higher isolated mountains and have high genetic diversity. Other authorities divide the Great Basin into different ecoregions, depending on their own criteria. Armen Takhtajan defined the "Great Basin floristic province". The U.S. Environmental Protection Agency divides

1748-449: The largest symmetrical caldera in the world. The caldera formed when a dome of magma built up and then drained away. The center of the dome collapsed, leaving a caldera. Henry's Fork Caldera lies within the older and larger Island Park Caldera , which is 50 miles (80 km) by 65 miles (105 km). Younger volcanoes that erupted after passing over the hotspot covered the plain with young basalt lava flows in places, including Craters of

1794-536: The most mountainous state in the country. The Great Basin's two most populous metropolitan areas are the Reno-Sparks metropolitan area to the west and the Wasatch Front to the east (with the latter being significantly more populous than the former). The region between these two areas is sparsely populated, but includes the smaller cities of Elko , Ely , Wendover , West Wendover , and Winnemucca . To

1840-903: The north are; in California Susanville , in Oregon Burns and Hines , in Idaho Malad and in Wyoming Evanston . To the south are Cedar City , Tonopah , and Bishop and the very southern area of the basin has the communities of Pahrump , Palmdale , Victorville , and Palm Springs . Interstate Highways traversing the Great Basin are Interstate 80 (I-80) and I-15 , and I-70 and I-84 have their respective endpoints within its boundaries. Other major roadways are U.S. Route 6 (US 6), US 50 , US 93 , US 95 and US 395 . The section of US 50 between Delta, Utah , and Fallon, Nevada ,

1886-837: The region evaporated, sank underground or flowed into lakes (mostly saline). As observed by Fremont, creeks, streams, or rivers find no outlet to either the Gulf of Mexico or the Pacific Ocean . The region is bounded by the Wasatch Mountains to the east, the Sierra Nevada and Cascade Ranges to the west, and the Snake River Basin to the north. The south rim is less distinct. The Great Basin includes most of Nevada , half of Utah , substantial portions of Oregon and California , and small areas of Idaho , Wyoming , and Baja California, Mexico . The term "Great Basin"

Owens Peak Wilderness - Misplaced Pages Continue

1932-481: The south, and the cold Great Basin and Oregon High Deserts in the north. The deserts can be distinguished by their plants: the Joshua tree and creosote bush occur in the hot deserts, while the cold deserts have neither. The cold deserts are generally higher than the hot and have more even spread of precipitation throughout the year. The climate and flora of the Great Basin are strongly dependent on elevation; as

1978-615: The territory north of the 42nd parallel via the 1819 Adams–Onís Treaty with Spain and 1846 Oregon Treaty with Britain. The US gained claims to most of the rest of the Great Basin via the 1848 Mexican Cession . The first non-indigenous settlement was in 1847 in the Great Salt Lake Valley, leading to the first American religious settlement effort of the Mormon provisional State of Deseret in 1849 in present-day Utah and northern Nevada. Later settlements were connected with

2024-402: Was constructed in the lower basin and Mojave Desert for California-Nevada rail service to Las Vegas, Nevada. The climate varies throughout the Great Basin by elevation, latitude, and other factors. Higher elevations tend to be cooler and receive more precipitation. The western areas of the basin tend to be drier than the eastern areas because of the rain shadow of the Sierra Nevada . Most of

2070-557: Was originally coined by John C. Frémont , who, based on information gleaned from Joseph R. Walker as well as his own travels, recognized the hydrographic nature of the landform as "having no connection to the ocean". The hydrographic definition is the most commonly used, and is the only one with a definitive border. The other definitions yield not only different geographical boundaries of "Great Basin" regions but regional borders that vary from source to source. The Great Basin Desert

2116-422: Was unintentionally introduced, forms a critical portion of their diets. Feral horses ( mustangs ) and feral burros are highly reproductive, and ecosystem-controversial, alien species. Most of the Great Basin is open range and domestic cattle and sheep are widespread. The Great Basin includes valleys, basins, lakes and mountain ranges of the Basin and Range Province . The basin and range topography

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