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Page 4711, results 117751 - 117775

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Reconnaissance geologic map of the Selway-Bitterroot Wilderness, Idaho County, Idaho, and Missoula and Ravalli counties, Montana
Margo I. Toth
1983, Miscellaneous Field Studies Map 1495-B
The Selway-Bitterroot Wilderness covers about 1.25 million acres in east-central Idaho and western Montana (fig. 1). The wilderness lies across the Bitterroot Range, which forms the boundary between Idaho and Montana, and includes large portions of the drainages of the Selway, Lochsa, and Bitterroot Rivers. Elevations range from 1,800 ft...
Geologic and mineral resource potential map of the Chambers Ferry Roadless Area, Sabine National Forest, Sabine County, Texas
B. B. Houser, George S. Ryan
1983, Miscellaneous Field Studies Map 1553
Under the provisions of the Wilderness Act (Public Law 88-577, September 3, 1964) and the Joint Conference Report on Senate Bill 4, 88th Congress, the U.S. Geological Survey and the U.S. Bureau of Mines have been conducting mineral surveys of wilderness and primitive areas. Areas officially designated as "wilderness," "wild,"...
Seismicity map of the State of New Mexico
C. W. Stover, B.G. Reagor, S. T. Algermissen
1983, Miscellaneous Field Studies Map 1660
The data shown on this map and listed in table 1 are for earthquakes that were originally included in a study of seismic risk in the United States (Algermissen, 1969). This data file has been recompiled and updated through 1980. Some revisions of epicenters and intensities in the original file...
Mineral resource potential map of the Stansbury Roadless Area, Tooele County, Utah
M. L. Sorensen, R. F. Kness
1983, Miscellaneous Field Studies Map 1353-C
The U.S. Bureau of Mines and the U.S. Geological Survey have conducted a survey to determine the mineral resource potential of the eastern part (D4757) of the Stansbury Roadless Area, Tooele County, Utah. The results of this survey indicate that a low to moderate potential for copper, lead, and silver...
Biostratigraphic correlation chart of some Upper Cretaceous rocks from the Lost Soldier area, Wyoming to west of Craig, Colorado
J.W. Bader, J. R. Gill, W. A. Cobban, B. E. Law
1983, Miscellaneous Field Studies Map 1548
This chart depicts the time-stratigraphic relations of some Upper Cretaceous rocks along the eastern and southeastern margins of the Greater Green River Basin, south-central Wyoming and northwestern Colorado. The purpose of this report is to release a preferred set of correlations based upon marine mollusk biostratigraphy. The senior author, with...
Mineral resource potential map of the Pyramid Roadless Area, El Dorado County, Colorado
Augustus K. Armstrong, Maurice A. Chaffee, Douglas F. Scott
1983, Miscellaneous Field Studies Map 1616-A
Studies show., there is low potential for small deposits of gold, silver, and base metals in the Pyramid Roadless Area. There are two uranium claims (Cliff Ridge mining claims) located within the roadless area, but samples from this site showed no uranium. There are no indications of geothermal resources, coal, oil, or...
Mineral resource potential map of the Lye Brook Wilderness, Bennington and Windham counties, Vermont
R. A. Ayuso, D. K. Harrison
1983, Miscellaneous Field Studies Map 1609-C
The Lye Brook Wilderness contains no significant mineral deposits. Although the Cheshire Quartzite is a potential source of low-grade silica sand and crops out in a large area within the wilderness, its degree of induration and relative inaccessibility make its use prohibitive. No major concentation of base metals exist within the Precambrian rocks,...