1. Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado : an interim report evaluating these Precambrian deposits as potential resources of base and precious metals Author/Creator: Sheridan, Douglas M., 1921- Publication/Creation: Washington : U.S. G.P.O. ; Alexandria, VA : For sale by the Distribution Branch, U.S. Geological Survey, 1984 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1547-1553. Access & Availability: Loading
2. Geology and uranium deposits of the Ralston Buttes District, Jefferson County, Colorado; : comprehensive study of the geology of a major district of productive uranium veins on the east flank of the Front Range west of Denver, Author/Creator: Sheridan, Douglas M., 1921- Publication/Creation: Washington : [U.S. Geological Survey; for sale by the Supt. of Docs.] U.S. Govt. Print. Off, 1967 Format: Book Is Part Of: U.S. Geological Survey professional paper, no. 516-520. Access & Availability: Loading
3. Geology of the Lost Creek schroeckingerite deposits, Sweetwater County, Wyoming Author/Creator: Sheridan, Douglas M., 1921- Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1961 Format: Book Access & Availability: Loading
4. Geology of the High Climb pegmatite, Custer County, South Dakota Author/Creator: Sheridan, Douglas M., 1921- Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1955 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1015 A-I. Access & Availability: Loading