TY  - RPRT
TI  - Coal resource occurrence map and coal development potential of the Iron Spring quadrangle, Big Horn and Treasure Counties, Montana
AU  - Colorado School of Mines Research Institute
PY  - 1978
DO  - 10.3133/ofr78631
UR  - https://pubs.usgs.gov/publication/ofr78631
ID  - ofr78631
ER  -