INDIAN CREEK PLACERS Park District. Broadwater County. Minerals Yearbook 1941. Page 375. Dragline and all-electric floating washing plant operated by Cooley Gravel Co. Douglas Placers operated two draglines and a dry-land dredge; also some small operations.
WPA, "Indian Creek" (1941). Minerals Yearbook, All. 973.
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Indian Creek Placers, Park District, Broadwater County, Cooley Gravel Company, dragline, dredge