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Topic: Bighorn Basin

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Bighorn Mountains

Intermontane

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Geography of the United States Rocky Mountain System

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	Bighorn Basin - Wikipedia, the free encyclopedia
		It is bounded by the Absaroka Range on the west, the Bighorn Mountains on the east, and the Owl Creek Mountains and Bridger Mountains on the south.
		It is drained to the north by tributaries of the Bighorn River, which enters the basin from the south, through a gap between the Owl Creek and Bridger Mountains, as the Wind River, and becomes the Bighorn as it enters the basin.
		The basin was explored by John Colter in 1807.
	en.wikipedia.org /wiki/Bighorn_Basin (216 words)

	Bighorn River - Wikipedia, the free encyclopedia
		The Bighorn River is a tributary of the Yellowstone, approximately 461 mi (742 km) long, in the western United States in the states of Wyoming and Montana.
		The upper reaches of the Bighorn, south of the Owl Creek Mountains in Wyoming, are known as the Wind River.
		North of the dam, it flows through the Bighorn Basin in North Central Wyoming, passing east of the town of Thermopolis and Hot Spring State Park.
	en.wikipedia.org /wiki/Bighorn_River (207 words)

	Shell Creek (Site not responding. Last check: 2007-11-07)
		Shell Creek crosses the Bighorn Basin from its source in the Bighorn Mountains to the Bighorn River at Greybull.
		The presence of the creek is revealed in the otherwise arid basin floor by the line of trees behind the cabin.
		This is typical of the plateau of the Bighorn Mountains.
	www.icdc.com /~pfal/wyoming/shellcr.htm (1149 words)

	Big Horn Mountains - Wikipedia, the free encyclopedia
		They are separated from the Absaroka Range, which lie on the main branch of the Rockies in western Wyoming, by the Bighorn Basin.
		The Bighorn Mountains were uplifted during the Laramide orogeny beginning approximately 70 million years ago.
		The Bighorn Mountains consist of over 9,000 feet of sedimentary rock strata laid down before mountain-building began: the predominantly marine and near-shore sedimentary layers range from the Cambrian through the Lower Cretaceous, and are often rich in fossils.
	www.wikipedia.org /wiki/Bighorns (344 words)

	Protected Areas Programme - (Site not responding. Last check: 2007-11-07)
		Physical Features A canyon-carved uplift, flanked on the east by the Bighorn Mountains, and on the west by the Pryor Mountains, upland prairie and a semi-arid area in the Bighorn Basin.
		Vegetation From south to north, desert vegetation in the Bighorn Basin, north to juniper biome, and upland short grass prairie.
		Bighorn sheep, elk, mule deer and white-tailed deer, fl bear and bald and golden eagles are seen frequently.
	www.unep-wcmc.org /sites/pa/0041u.htm (177 words)

	[No title]
		The tree-covered ridge on the horizon is the south margin of the Piney Creek Thrust.
		The ridge at the center is composed of the Ordovician Bighorn dolomite and Mississippian Madison fm.
		The Pryor and Bighorn Mountains are at the horizon.
	www.geology.wisc.edu /~maher/air/00readme.txt (12513 words)

	Wyoming State Water Plan - Wind / Bighorn River Basin Plan
		The Platte River Basin planning process is scheduled to begin in 2003 and is the final of the basin plans.
		In the remaining portion of the Bighorn Basin, shortages are primarily on smaller tributaries.
		The data presented in the basin report clearly shows that substantial water resources are available in the WBHB for development, but that the distribution and availability of the water resources in the WBHB relative to point of use is highly variable.
	waterplan.state.wy.us /plan/bighorn/execsumm.html (3046 words)

	Natural History: Hot Times in the Bighorn Basin (Site not responding. Last check: 2007-11-07)
		The Bighorn Basin is roughly 4,000 square miles (about 10,000 square kilometers) of badlands, sagebrush flats, and irrigated fields.
		Like other basins in the Rocky Mountains, the Bighorn Basin formed 60-50 million ?ears ago, during the late Paleocene and early Eocene, as mountains were pushed up on all sides.
		The estimated mean annual temperature in the Bighorn Basin during the Paleocene and early Eocene varied from about 50 to 68 [degrees] F (10-20 [degrees] C).
	www.findarticles.com /p/articles/mi_m1134/is_3_110/ai_73064223 (1420 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		The snow pack for the Missouri Basin between Toston and Fort Peck, Montana was 83 percent of average.
		Stream flow in the North Platte Basin is expected to range from 20 to 60 percent of average April-September volumes.
		Runoff for streams in the South Platte Basin are forecast to vary from 50 to 70 percent of average spring summer runoff.
	www.crh.noaa.gov /mbrfc/WSP3 (577 words)

	Big Horn Basin (Site not responding. Last check: 2007-11-07)
		The Bighorn Basin is a large intermontane basin in the Rocky Mountain foreland (Blackstone, 1986).
		The basin is composed of approximately 10,000 square miles of dominantly Cretaceous rocks in addition to localized outcrops of Triassic, Jurassic, and Tertiary stratigraphy.
		Prior to the Laramide orogenic event, the Bighorn Basin was not a sedimentary or structural basin.
	server1.thermopwy.net /bhbf/bhbasin.html (123 words)

	Summary of Citation
		Occurrences in Bighorn Mountains, WY in the Powder River and Bighorn basins, and in the Owl Creek Mountains, WY in the Bighorn and Wind River basins discussed.
		Composed in Bighorns of a basal, gray, coarse-grained sandstone usually 25 to 30 ft thick, middle, buff, massive limestone that has irregular, siliceous masses one-half to 1 inch diameter that give the outcrop a ragged appearance, and an upper, soft, white to gray, fine-grained limestone.
		The thin Lander is correlated with the basal sandstone in the Bighorn Mountains.
	ngmdb.usgs.gov /Geolex/Refsmry/sumry_7066.html (1736 words)

	Natural History: Wyoming's Garden of Eden (Site not responding. Last check: 2007-11-07)
		The ancient Bighorn is a subtropical lowland floodplain, lush with vegetation and teeming with animal life.
		For those of us who study Eocene mammals of the Bighorn Basin, such scenarios are easy to envision, for the life and death of the region's ancient inhabitants are recorded in the fossils that abound in the badlands.
		The bones of another Bighorn Basin mammal, Diacodexis, show it to be the oldest and most primitive of the even-toed ungulates.
	www.findarticles.com /p/articles/mi_m1134/is_3_110/ai_73064224 (1422 words)

	Bighorn Basin -- NWC Area Map (Site not responding. Last check: 2007-11-07)
		Located in northwestern Wyoming, the Bighorn Basin is formed by the Bighorn Mountains to the east, the Owl Creek Mountains to the south, and the Absaroka Mountains to the west.
		The Bighorn Basin is vast, larger than Connecticut and Delaware combined.
		Difficult terrain made the Basin one of the last parts of Wyoming to be settled.
	www.northwestcollege.edu /information/maps/area/bhbasin/indexbhbasin.htm (173 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		The snow pack for the Missouri Basin between Toston and Fort Peck, Montana was 133 percent of average.
		The snow pack for the Wind Basin was 35 percent of average whereas the Bighorn Basin above St. Xavier, Montana was 63 percent of average.
		Runoff for streams in the South Platte Basin are forecast to vary from 10 to 40 percent of April-September runoff.
	www.crh.noaa.gov /mbrfc/WSP6 (638 words)

	Geology by Lightplane
		The region between Lovell and Greybull, Wyoming, is in the Bighorn Basin, a structural basin formed during the Laramide Orogeny of the early Tertiary.
		The Bighorn Basin, like the other intermountain basins of Wyoming and Colorado, was filled with the debris eroded from the surrounding uplifts even as folding continued.
		The Pryor and Bighorn are at the horizon.
	www.geology.wisc.edu /~maher/air/air07.htm (2315 words)

	Wyoming Nature Tours
		In addition to Yellowstone, we suggest you consider exploring the Bighorn Basin while you are in the area.
		Bighorn Canyon, located on the eastern edge of the Bighorn Basin, offers spectacular geology, ghost towns and western history, wild horses, bighorn sheep, raptors, and many photo opportunities.
		Within the Bighorn Basin are the remote Pryor Mountains, McCollough Peaks, and the Fifteen Mile Basin.
	www.wyomingnaturetours.com (279 words)

	WWRC 84-02 : Abstract : Tectonic Structures Responsible for Anisotropic Transmissivities in the Paleozoic Aquifers ...
		Movement of groundwater in aquifers of Paleozoic age in the southern Bighorn basin, Wyoming, is influenced by anisotropy which is the result of deformation of the sedimentary rocks.
		The sedimentary rocks prior to the Laramide orogeny were approximately 12,000 feet (3657 m) thick of which approximately 2200 feet (670 m) are of Paleozoic age (Figure 1).
		The sediments have been deformed into faulted folds ranging in size from intermontane basins (Bighorn basin) to those with an amplitude ranging from 500 to 5000 feet (150 - 1500 m.) Essentially all folds result from movement on reverse faults at the interface between the sedimentary cover and the crystalline Precambrian basement.
	library.wrds.uwyo.edu /wrp/84-02/abstract.html (200 words)

	Bighorn National Forest Sheridan, Wyoming (US Forest Service)
		Bighorn National Forest consumes 1,115,171 acres in the Big Horn Mountains of north and central Wyoming.
		Hwy 14A, Bighorn Scenic Byway, is the route that reaches Bighorn.
		The Bighorn River is considered, by some, to be the best trout stream in the continental US as...
	www.ohwy.com /wy/b/bighornf.htm (371 words)

	Wyoming's Whiskey Basin: Heart of Bighorn Sheep Country (Site not responding. Last check: 2007-11-07)
		Here, at a place called Whiskey Basin, bighorn sheep have thrived for decades, producing good numbers of lambs each year, a surplus that wildlife managers with the Wyoming Game and Fish Department have used to supplement wild populations around the West.
		In Wyoming, bighorn sheep can be found in many of the major mountain ranges, but many of these populations exist thanks to the Whiskey Basin population.
		Bighorns, like antelope, like open country because one of their best defense mechanisms is their sight.
	www.yellowstonepark.com /news/archive/2004/bighorncountry.asp (829 words)

	Kenneth Rose's Fieldwork - The Center for Functional Anatomy and Evolution at JHU (Site not responding. Last check: 2007-11-07)
		The Bighorn Basin of northern Wyoming is a geologist's paradise, with fossil-bearing sediments of nearly all ages from the Cambrian to the Oligocene.
		Older sediments are found along the margins of the basin and in the beautiful mountains that flank the basin (the Bighorns, Pryors, Beartooths, and Absarokas).
		Particularly important are the extensive exposures of Paleocene and Eocene age that cover the center of the basin, which are among the most fossiliferous continental beds of this age in the world.
	www.hopkinsmedicine.org /fae/fieldKDR.htm (927 words)

	Montana LC 1458
		"Bighorn River Basin" means Water Court Basin 43P, the mainstem of the Bighorn River and its tributaries (exclusive of the Little Bighorn River and its tributaries) within Montana to its confluence with the Yellowstone River, as depicted on the map attached as Appendix 2.
		"Pryor Creek Basin" means Water Court Basin 43E, the mainstem of Pryor Creek and its tributaries from its headwaters to its confluence with the Yellowstone River, as depicted on the map attached as Appendix 2.
		The basin closure applies only to new appropriations not excepted from the permit process, as provided in Section D.1., of Article IV, and is not a limit on change of use or transfers of water rights Recognized Under State Law, subject to the terms and conditions in Section D.2., of Article IV.
	data.opi.state.mt.us /bills/lchtml/LC1458.htm (12396 words)

	Wyoming State Water Plan - Wind / Bighorn River Basin Advisory Group: Meeting Record, April , 2002
		The facilitators for the Wind/Bighorn Basin Advisory Group, Sherri Gregory-Schreiner and Cathy Lujan, of Counterpoise Consulting, Inc. in Cheyenne, opened the meeting at 3:00 p.m.
		Barry Lawrence, WWDC River Basin Planner, distributed copies of past presentations to be added to the basin advisory group reference notebook.
		It was noted that diversity best describes the fisheries of the basin, with 7 native game species, 12 native non-game species, and 28 non-native species.
	waterplan.state.wy.us /BAG/bighorn/20020409-min.html (922 words)

	[No title]
		Bighorn Dolomite (Upper Ordovician) The Ordovician Bighorn Dolomite is appoximately 400 feet thick in Bighorn Canyon.
		This unit is exposed on the eastern edge of the Bighorns and ranges in thickness between 350 and 400 feet.
		Bighorn Basin: A thick sequence of fossiliferous Paleocene and Eocene strata, including the Polecat Bench, Fort Union, and Willwood Formations, occurs in the Bighorn Basin.
	www2.nature.nps.gov /geology/paleontology/pub/grd4/BICA.doc (2514 words)

	Michigan Basin (Site not responding. Last check: 2007-11-07)
		The Michigan Basin Province of the United States includes the Lower Peninsula and eastern Upper Peninsula of the State of Michigan, the eastern counties of Wisconsin, twelve counties in northeast Indiana, five counties in northwest Ohio, and adjoining parts of the Great Lakes.
		Oil and gas in the Michigan Basin are produced from reservoirs as young as Pleistocene and as old as Middle Ordovician.
		The principal period of exploration of the basin in the United States did not begin until the 1920's and resulted in discovery of many Mississippian and Devonian pools in large anticlinal features in the basin.
	www.dapldenver.org /MembOnlyPages/Strats/StratFiles/Michigan.htm (315 words)

	Chapter 48-Ecological Subregions of the United States
		Northwestern Basin and Range Section is located in the northern portion of Nevada, southeastern Idaho, and south-central Oregon.
		Warner Lake suckers, Alvord chubs, and Soldier Meadows desertfish are endemic fishes of interior basin lakes and springs.
		This region exhibited prehistoric lifestyles that were transitional between Great Basin cultural patterns to the south and Columbia Plateau cultural patterns to the north.
	www.fs.fed.us /land/pubs/ecoregions/ch48.html (4676 words)

	Bighorn on Encyclopedia.com
		Boysen and Yellowtail are the principal dams; the lake behind Yellowtail dam is the nucleus of Bighorn Canyon National Recreation Area (see National Parks and Monuments, table).
		A team of volunteers and employees of the Colorado Division of Wildlife trap 20 bighorn sheep near the foothills of Colorado Springs, Colorado.
		A handkerchief serves as a blindfold to calm one of 20 bighorn sheep trapped near Queen's Canyon in Colorado Springs, Colorado.
	www.encyclopedia.com /html/b/bighorn.asp (724 words)

	February 1997 Water Supply Outlook - Bighorn River Basin
		The basin SWE, as a whole, is currently 123 percent of February 1 average.
		SWE for the entire basin is 8 percent ahead of February 1996 (last year).
		Reservoir storage is good in the basin with Bighorn Lake at 98 percent of average and Boysen at 93 percent.
	www.wrds.uwyo.edu /wrds/nrcs/snowpack/1997Feb/bighorn.html (365 words)

	January 1997 Water Supply Outlook - Bighorn River Basin
		The basin SWE, as a whole, is currently 131 percent of January 1 average.
		SWE for the entire basin is 9 percent ahead of January 1996 (last year).
		Reservoir storage is good in the basin with Bighorn Lake at 100 percent of average and Boysen at 91 percent.
	www.wrds.uwyo.edu /wrds/nrcs/snowpack/1997Jan/bighorn.html (399 words)

	June 2000 Water Supply Outlook - Bighorn River Basin (4)
		Snowpack in this basin is well below average for this time of year.
		The basin SWE, as a whole, is currently 49 percent of average (33 percent of last year).
		Bighorn Lake is now at 111 percent of average (947,600- acre feet).
	www.wrds.uwyo.edu /wrds/nrcs/snowpack/2000Jun/bighorn.html (372 words)

	June 1997 Water Supply Outlook - Bighorn River Basin
		Most drainage's in the basin are getting close to melting out.
		The basin SWE, as a whole, is currently 89 percent of average for June 1.
		SWE for the entire basin is 46 percent of the June 1996 figure.
	www.wrds.uwyo.edu /wrds/nrcs/snowpack/1997Jun/bighorn.html (374 words)

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