00980cam a2200277 4500 gs 68000207 DLC 20260227111422.0 690523s1967 dcub b 00010 eng c gs 68000207 //r933 U.S. Geol. Survey. Library DLC DLC n-us-nv QE75 .C5 no. 549 QE138.E4 C6 Copy 2. 553/.09793/16 Coats, Robert Roy, 1910- Economic significance of revised age relations of rocks in the Cornucopia mining district, Elko County, Nevada, by R. R. Coats. Washington, U.S. Dept. of the Interior, 1967. iii, 4 p. maps. 27 cm. Geological Survey circular 549 Bibliography: p. 4. Geology Nevada Elko County. Ore deposits Nevada Elko County. Cornucopia mining district, Elko County, Nevada. Geological Survey circular ; 549. 30446 30446