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Geohydrology of the High Plains Aquifer system, Cheyenne urban area, Wyoming

Water-Resources Investigations Report 92-4047

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Abstract

The Cheyenne area is on broad tablelands that form part of the High Plains aquifer. Surficial deposits, along with the Ogallala Formation and the White River Group, are included in the High Plains aquifer in the study area, and both unconfined and confined ground-water conditions exist within 100 feet of land surface. During wet years, shallow ground-water problems affect urban development. The High Plains aquifer is considered an aquifer system in the Cheyenne area. Water-yielding sandstone and conglomerate units are surrounded by sequences of clay and silt; although the water-yielding units under confined conditions may be areally extensive, they are not easily identified. Urban development has modified the High Plains aquifer system locally as indicated by the mapped potentiometric surfaces, the perched water zones, and the surface-drainage patterns. That part of the system in the shallow zones is affected by excavations and by structures that penetrate the saturated zones. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Geohydrology of the High Plains Aquifer system, Cheyenne urban area, Wyoming
Series title:
Water-Resources Investigations Report
Series number:
92-4047
Edition:
-
Year Published:
1991
Language:
ENGLISH
Description:
2 maps on 2 sheets : col. ; 47 x 50 cm. and 71 x 71 cm., sheets 103 x 99 cm. and 99 x 104 cm. + 2 data sheets (84 x 84 cm. and 90 x 112 cm.) folded in envelope 31 x 24 cm.; Map dated 1991, envelope dated 1994