TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Ashland NE Quadrangle, Rosebud County, Montana
AU  - Colorado School of Mines Research Institute
PY  - 1979
DO  - 10.3133/ofr791
UR  - https://pubs.usgs.gov/publication/ofr791
ID  - ofr791
ER  -