Geology of the Wood and East Calhoun mines, Central City district, Gilpin County, Colorado /
Drake, Avery Ala,1927-
U.S. Atomic Energy Commission.
Washington, [D.C.] : U.S. G.P.O.,
1957.
"This report concerns work done on behalf of the U.S. Atomic Energy Commission..."
Includes index.
Bibliography: p. 167-168.
Geology