Geology of the Wood and East Calhoun Mines, Central City District, Gilpin County, Colorado
Subtitle: Geology and Ore Deposits of Clear Creek, Gilpin, and Larimer Counties, Colorado.
Contributors: Drake, A.A.
Series: U.S. Geological Survey bulletin -- 1032C
Publisher: s.n
Published: 1955
Place of publication: S.l
Language: eng
Notes: 1