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Page 62, results 1526 - 1550

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Geophysical survey of the Centennial Mountains Wilderness Study Area and contiguous areas, Beaverhead County, Montana and Clark and Fremont counties, Idaho
R.A. Martin
1982, Miscellaneous Field Studies Map 1342-C
Parts of both the Targhee and Beaverhead National Forests are within the study area. Four contiguous parcels of land, totaling about 96,176 acres (38,922 ha) make up the area. The first of these encompasses about 46,126 acres (18,667 ha), is wholly in Montana, and includes an addition by the Bureau...
Mineral resource potential map of the Whitewater Wilderness Study Area, Riverside and San Bernardino counties, California
Jonathan C. Matti, Brett F. Cox, Curtis M. Obi, Robert E. Powell, Margaret Hinkle, Andrew Griscom, Edward L. McHugh
1982, Miscellaneous Field Studies Map 1478-A
Geological, geochemical, and geophysical evidence, together with a 'review of historical mining and prospecting activities, suggests that most of the Whitewater Wilderness Study Area has low potential for all types of mineral and energy resources- including precious and base metals, building stone and aggregate, fossil fuels, radioactive-mineral resources, and geothermal resources. One small...
Geologic maps of the Sacramento-San Joaquin Delta, California
Brian F. Atwater
1982, Miscellaneous Field Studies Map 1401
The Sacramento-San Joaquin Delta, the arm of the San Francisco Bay estuary that reaches into the Central Valley of California, differs from typical coastal-plain deltas in three important respects.  First, rather than meeting the ocean individually and directly, all major waterways of this delta discharge via a single constricted outlet...
Geochemical survey of the Ramseys Draft Addition, Augusta and Highland counties, Virginia
Frank G. Lesure
1982, Miscellaneous Field Studies Map 1369-B
The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Ramseys Draft Addition (fig.1) to test for indistinct or unexposed mineral deposits that might be recognized by their geochemical halos.  Thirty-three stream-sediment, two soil, and 22 rock samples were collected from the addition during the earlier study of...
Mineral resource potential map of the Rock Pile Mountain Wilderness Study area, Madison County, Missouri
Walden P. Pratt, Ralph L. Erickson, Clarence Ellis
1982, Miscellaneous Field Studies Map 1339-B
Although the Rock Pile Mountain Wilderness Study Area is within the general boundary of the Southeast Missouri mining district, it has no record of mineral production and there is no mining or prospecting activity at present. Exploratory drill holes on private land along the west side of the area encountered...
Mineral resource potential map of the Muddy Mountains Wilderness Study Area, Clark County, Nevada
Robert G. Bohannon, Andrew M. Leszcykowski, Leon E. Esparza, Clayton M. Rumsey
1982, Miscellaneous Field Studies Map 1458-C
The Muddy Mountains Wilderness Study Area (WSA 050-0229), Clark County, Nevada, has a high potential for mineral deposits of calcium borates and lithium. The known and potential mineral deposits are concentrated in the east-central and south-central parts of the study area (see map). Zeolites (in particular clinoptilolite) are present in...
Mineral resource potential map of the Bighorn Mountains Wilderness Study Area (CDCA-217), San Bernardino County, California
Jonathan C. Matti, Brett F. Cox, Eduardo A. Rodriguez, Curtis M. Obi, Robert E. Powell, Margaret Hinkle, Andrew Griscom, Charles Sabine, Gary J. Cwick
1982, Miscellaneous Field Studies Map 1493-A
Geological, geochemical, and geophysical evidence, together with a review of historical mining and prospecting activities, suggests that most of the Bighorn Mountains Wilderness Study Area has low potential for the discovery of all types of mineral and energy resources-including precious and base metals, building stone and aggregate, fossil fuels, radioactive-mineral...