TY  - RPRT
TI  - Coal resource occurrence map and coal development potential of the Iron Spring SW quadrangle, Big Horn County, Montana
AU  - Colorado School of Mines Research Institute
PY  - 1978
DO  - 10.3133/ofr78632
UR  - https://pubs.usgs.gov/publication/ofr78632
ID  - ofr78632
ER  -