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Publication Extents

Not all publications have extents, not all extents are completely accurate
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...
Geologic structure map of the Beetown lead-zinc area, Grant County, Wisconsin
Allen V. Heyl Jr., Erwin J. Lyons, John J. Theiler
1952, Miscellaneous Field Studies Map 3
The Beetown area, in Grant County, Wisconsin, in the northwestern part of the Upper Mississippi Valley zinc-lead district, lies in the western part of T. 4 N., R. 4 W., and the eastern part of T. 4 N., R. 5 W. The village of Beetown is at about its center. Recent...
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...