TY  - RPRT
TI  - Land and natural resource information and some potential environmental effects of surface mining of coal in the Gillette area, Wyoming
AU  - William Richard Keefer
AU  - R. F. Hadley
PY  - 1976
DO  - 10.3133/cir743
UR  - https://pubs.usgs.gov/publication/cir743
ID  - cir743
ER  -