TY - RPRT TI - Map showing some potential effects of surface mining of the Wyodak-Anderson coal, Gillette area, Campbell County, Wyoming AU - R. F. Hadley AU - W. R. Keefer PY - 1975 DO - 10.3133/i848f UR - https://pubs.usgs.gov/publication/i848F ID - i848F ER -