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Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

Filter Total Items: 8997

Geologic map of the Bar H area, Slim Buttes, Harding County, South Dakota

No abstract available.

Geologic map of the Du Noir area, Fremont County, Wyoming

No abstract available.

Geologic map of the Slim Buttes area, Harding County, South Dakota

No abstract available.

Geologic map of the southern part of the Slim Buttes area, Harding County, South Dakota

No abstract available.

Geologic map of the Triangle A pegmatite, Custer County, South Dakota

The Triangle A pegmatite is 4 miles southeast of Custer in the SW 1/4, sec. 34, T. 3 S., R. 5 E., Custer County, S. Dak.  It may be reached from Custer by a gravel road 2.4 miles long that leaves U.S. Highway 16A at a point 3.2 miles east of Custer.

Geologic map of the Walsenburg area, Huerfano County, Colorado

No abstract available.

Geology and fuel resources of the Upper Cretaceous rocks of the Barker dome-Fruitland area, San Juan County, New Mexico

No abstract available.

Geology and zinc-lead deposits in the Couler Valley area, Dubuque County, Iowa

Geologic investigations were begun in the Iowa portion of the Wisconsin-Illinois-Iowa zinc-lead district to appraise its potentialities: (1) for zinc ore in strata that elsewhere in the mining district contain large zinc ore bodies and (2) for lead and zinc deposits of the type that were mined extensively in Dubuque County, Iowa, during the 19th century.

Geology and zinc-lead deposits in the Durango area, Dubuque County, Iowa

Geologic investigations were begun in Iowa to appraise; (1) the possible occurrence of zinc ore in strata that elsewhere in the Upper Mississippi Valley zinc-lead district have been the principal sites of zinc concentration; and (2) lead ore of the type known as "crevice deposits," which were mined so extensively during the 19th century in Dubuque County, Iowa, but have been mined very little sinc

Geology of anthracite in the eastern part of the Shenandoah quadrangle, Pennsylvania

No abstract available.

Geology of anthracite in the western part of the Delano quadrangle, Pennsylvania

No abstract available.

Geology of anthracite in the western part of the Shenandoah quadrangle, Pennsylvania

No abstract available.