Photographs of historical mining operations in Colorado and Utah

Online link https://mrdata.usgs.gov/mine-photos/
Description A collection of photographs of mine sites, mining operations, and tailings taken prior to 1980 at a variety of sites throughout Colorado and Utah.
Originators McGregor, Joseph K. and Abston, Carl C.
Publication U.S. Geological Survey Digital Data Series 12
Metadata Questions and answers

States or counties