TY  - RPRT
TI  - Coal drilling during 1980 in Big Horn, Dawson, McCone, Powder River, Prairie, Richland, Rosebud, and Treasure counties, Montana
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
AU  - Montana Bureau of Mines and Geology
PY  - 1981
DO  - 10.3133/ofr8226
UR  - https://pubs.usgs.gov/publication/ofr8226
ID  - ofr8226
ER  -