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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geologic map of the Barnes Hill talc prospect, Waterbury, Vermont
A.H. Chidester, G. W. Stewart, D.C. Morris
1952, Miscellaneous Field Studies Map 7
The Barnes Hill talc prospect is in northeastern Waterbury township, Washington County, Vermont, about 2.2 miles N. 35° E. of the road triangle at Waterbury Center.  The deposit occurs in a body of ultramafic rock that crops out between the altitudes of 1,150 and 1,190 feet above sea level, near...
Geologic map of bastnaesite deposits, Birthday claims, San Bernardino County, California
W. N. Sharp, L.C. Pray
1952, Miscellaneous Field Studies Map 4
In April 1949 a deposit containing considerable quantities of the rare mineral bastnaesite - the fluorocarbonate of cerium, lanthanum, and other rare earths - was discovered near Mountain Pass, San Bernardino County, Calif.  Small quantities of bastnaesite have been found in several places in the United States, but this area...
Manganese, iron, and barite deposits of the James River-Roanoke River district, Virginia
Gilbert H. Espenshade
1952, Miscellaneous Field Studies Map 5
During the period 1940-1942 the United States Geological Survey made a geologic study of the manganese deposits of the James River-Roanoke River district, in the general vicinity of Lynchburg, Va. (fig. 1), as part of its program of strategic minerals investigations.  This work was done by the writer and supervised...
Photogeologic maps of the Verdure 1, 2, 4, 6, 7, and 8 quadrangles, Utah and Colorado
Robert J. Hackman
1952, Open-File Report 52-63
Base maps compiled by Soil Conservation Service, U.S. Department of Agriculture. These maps are compilations of photogeology and surface geology, Colorado Plateau area, United States. They are also known as: Trace Elements Memorandum Report 399 (Verdure 1) Trace Elements Memorandum Report 406 (Verdure 2) Trace Elements Memorandum Report 438 (Verdure 4) Trace Elements Memorandum...