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Geology of the Wood and East Calhoun Mines, Central City District, Gilpin County, Colorado
Report discussing the geology of the Wood vein and East Calhoun mine areas of Gilpin County, Colorado.
Notes on the Differential Leaching of Uranium, Radium, and Lead From Pitchblende in H2SO4 Solutions
Report discussing the leaching of uranium, radium and lead from oxidized black Katanga pitchblende. Results of leaching are included.
Preliminary Geologic and Vein Maps of Part of the Central City District, Gilpin, and Clear Creek Counties, Colorado
Report containing geologic and vein maps for part of the Central City District, Colorado. Tables containing Shafts and adits in the area are included.
Uranium Deposits in the Eureka Gulch Area, Central City District, Gilpin County, Colorado
Report discussing nine radioactive mine dumps in the Eureka Gulch area of the Central City District of Gilpin County, Colorado, that were discovered between 1951 and 1953.
Paragenesis and Structure of Pitchblende-Bearing Veins, Central City District, Gilpin County, Colorado
Report discussing a study on the Central City district and adjoining mining areas to determine the geology and economic importance of the uranium occurrences in the region.