TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Pine Butte School quadrangle, Big Horn County, Montana
AU  - William Craven Culbertson
AU  - L. N. Robinson
AU  - T. M. Gaffke
PY  - 1978
DO  - 10.3133/ofr78652
UR  - https://pubs.usgs.gov/publication/ofr78652
ID  - ofr78652
ER  -