TY  - RPRT
TI  - Coal resource occurrence and coal development potential maps of the Otter Quadrangle, Powder River County, Montana
AU  - E. J. McKay
AU  - Laura N. Robinson
PY  - 1979
DO  - 10.3133/ofr79105
UR  - https://pubs.usgs.gov/publication/ofr79105
ID  - ofr79105
ER  -