TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Birney Quadrangle, Rosebud County, Montana
AU  - W. J. Mapel
AU  - B. K. Martin
PY  - 1978
DO  - 10.3133/ofr7830
UR  - https://pubs.usgs.gov/publication/ofr7830
ID  - ofr7830
ER  -