Geology and ore deposits of the Chichagof mining district, Alaska,

By Reed, John Calvin,.
Washington, U.S. Govt. Print. Off., 1941 .
viii, 148 p. , At head of title: U.S. Dept. of the Interior, Harold L. Ickes, secretary, Geological survey, W. C. Mendenhall, director. | Fourteen of the plates are in separate case. 23 cm..

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Economic significance of revised age relations of rocks in the Cornucopia mining district, Elko County, Nevada,

By Coats, Robert Roy,.
Washington, U.S. Dept. of the Interior, 1967 .
iii, 4 p. 27 cm..

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Geology and ore deposits of the Chichagof mining district, Alaska,

Economic significance of revised age relations of rocks in the Cornucopia mining district, Elko County, Nevada,