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12 Geology and Mineral Resources of the Southwestern and South-Central Wyoming and Bear River Watershed Sagebrush Focal Areas Introduction 13 112°0' 111°0' 110°0' 109°0' 108°0' 107°0' MIDDLE ROCKY 43°30' COLUMBIA MOUNTAINS WASHINGTON MONTANA PLATEAU PROVINCE PROVINCE GREAT NORTHERN GREAT PLAINS PLAINS ROCKY MOUNTAINS PROVINCE COLUMBIA PLATEAU IDAHO BINGHAM BONNEVILLE MIDDLE ROCKY Map COUNTY MOUNTAINS COUNTY WIND RIVER RANGE OREGON area 43°0' BANNOCK WYOMING RANGE NATRONA WYOMING COUNTY BASIN AND RANGE FREMONT COUNTY COUNTY PROVINCE WYOMING 287 Study areas BASIN CARIBOU COUNTY RATTLESNAKE HILLS BASIN AND RANGE SOUTH PASS NEVADA UTAH COLORADO SUBLETTE BLOCK Sweetwater River GRANITE COUNTY 30 MOUNTAINS 42°30' IDAHO EXPLANATION 89 BIG SANDY BEAR LAKE LINCOLN BLOCK 191 Physiography COUNTY COUNTY 189 Crooks Gap FERRIS FRANKLIN Provinces COUNTY MOUNTAINS FOSSIL BASIN Great Plains 30 89 BLOCK Basin and Range BOARS TUSK Columbia Plateau 42°0' Bear CARBON CONTINENTAL WYOMING BASIN COUNTY BOX Lake FONTENELLE BLOCK Middle Rocky Mountains TUNP RANGE PROVINCE ELDER BLOCK DIVIDE BLOCK COUNTY CACHE VALLEY Southern Rocky Mountains LEUCITE GREEN Rawlins HILLS 30 RIVER 80 Wyoming Basin 191 BASIN MTS. UTAH BEAR RIVER RANGE Sand Greater Green River Basin (Approximate boundary of Bear River CRAWFORD Basin Bridger, Great Divide, Kindt, Washakie, Green River, CACHE Rock Springs SOUTHERN 41°30' COUNTY 189 ROCKY and Hoback Basins) BEAR LAKE Green River MOUNTAINS GREAT Trona mineralized area outline RICH PLATEAU 191 PROVINCE COUNTY BLOCK Base data WEBER 80 TRONA SIERRA MADRE COUNTY Evanston AREA SWEETWATER COUNTY USGS study area boundaries MORGAN Bear River Watershed Area COUNTY UINTA COUNTY SALT WYOMING Southwestern and South Central Wyoming 41°0' LAKE Proposed withdrawal areas MIDDLE ROCKY DAGGETT MOUNTAINS COUNTY MOFFATT UINTA MOUNTAINS COUNTY State boundaries PROVINCE SUMMIT COLORADO COUNTY County boundaries Base modified from U.S. Geological Survey DEM data, 2016. Green River Basin data from USGS Southwest WY Province Assessment Team, (2005a). Roads and political data © 2014 Esri and its licensors. 0 10 20 30 40 50 MILES Trona area from Fernette and others (2016). Boundary data from San Juan and others (2016). Physiographic provinces from USGS (2014). USA Contiguous Albers Equal Area Conic Projection. 0 10 20 30 40 50 KILOMETERS Central meridian, 110° W., latitude of origin, 37.5° N. North American Datum of 1983. Figure 3. Map showing the physiography of the Southwestern and South-Central Wyoming and Bear River Watershed study areas, Wyoming and Utah. USGS, U.S. Geological Survey..

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