TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Poker Jim Butte quadrangle, Rosebud and Powder River Counties, Montana
AU  - W. J. Mapel
AU  - B. K. Martin
AU  - B. A. Butler
PY  - 1978
DO  - 10.3133/ofr78651
UR  - https://pubs.usgs.gov/publication/ofr78651
ID  - ofr78651
ER  -