Uintah Basin
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The Uintah Basin is a physiographic section of the larger Colorado Plateaus province, which in turn is part of the larger Intermontane Plateaus physiographic division.[1] It It is also a geologic structural basin in eastern Utah, east of the Wasatch Mountains and south of the Uinta Mountains. The Uintah Basin is fed by creeks and rivers flowing south from the Uinta Mountains. Many of the principal rivers (Strawberry River, Currant Creek, Rock Creek, Lake Fork River, and Uinta River) flow into the Duchesne River which feeds the Green River--a tributary of the Colorado River. The confluence of the Green and Colorado rivers is located in Canyonlands National Park.
The Uinta Mountains comprise one of the borders of the Uintah Basin, though outside of the Basin's boundary, and are the only major mountain ranges in the United States oriented from east to west, rather than north to south[citation needed]. They contain the highest point in Utah, Kings Peak, with a summit 13,528 feet above sea level.
The climate of the Uintah Basin is arid, with occasionally severe cold winter temperatures.
The largest community in the Utah part of the Uintah Basin is Price, one of the most important coal mining communities in Utah. According to the U.S. Census, the community's population in 2000 was 8,402. Other communities in the Utah part of the region include Duchesne, Roosevelt, Helper, and Vernal. The largest community in the overall Uintah Basin however is Grand Junction, Colorado. The Uintah Basin is also the location of the Uintah and Ouray Indian Reservation, home to the Ute Tribe of the Uinta and Ouray Agency (also known as the Northern Ute Tribe). The Ute Tribe is the source of Utah's state name.
Father Escalante's expedition visited the Uintah Basin in 1776. The Northern Ute Indian Reservation was established in 1961 by presidential decree. The United States opened the reservation for homesteading by non-Indians in 1905. During the early decades of the twentieth century, both Indian and non-Indian irrigation systems were constructed--the Uinta Indian Irrigation Project, the Moon Lake Project, and the Central Utah Project.
Local attractions include Dinosaur National Monument and Flaming Gorge National Recreation Area.
The local economy, once based on agriculture and mining, has diversified, and energy extraction and tourism are now major industries as well. In addition, Utah State University operates extension campuses at Vernal, Roosevelt, and Price, expanding educational opportunities in a previously underserved region of Utah.
[edit] Geology and Physiography
The Uintah Basin is the most northerly section of the Colorado Plateau sections and the northern margin of the section is characterized by a basin just south of the Unita Mountains. The basin is 8,000 to 9,000 ft above sea level and corresponding to this depression is a broad east-west strip of higher plateau that rises sharply above the denuded country to the south. On the south side of the plateau the descent of 3,000 ft, to the general level of eastern Utah on the south, is made in two steps. The first is the Roan Cliffs and the second, the Book Cliffs. Eastward in Colorado the two lines of cliffs are poorly distinguished. The Green River flows southward out of the Unita Mountains to the north, crossing the Unita Basin, and flows in a 3,000 ft deep gorge known as Desolation Canyon. The Colorado River crosses the eastern portion of this section cutting off an area of some 40 miles in diameter in which are preserved fragments of a lofty lava cap forming Grand Mesa and Battlement Mesa.[2]
[edit] References
- ^ Physiographic divisions of the conterminous U. S.. U.S. Geological Survey. Retrieved on 2007-12-06.
- ^ Leighty, Dr. Robert D. (2001). Colorado Plateau Physiographic Province. Contract Report. Defense Advanced Research Projects Agency (DOD) Information Sciences Office. Retrieved on 2007-12-25.
[edit] External links
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