TY  - RPRT
TI  - Coal drilling during 1978 in Big Horn, Daniels, Dawson, Musselshell, Richland, Roosevelt, Rosebud, Valley, and Yellowstone counties, Montana
AU  - Montana Bureau of Mines and Geology
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1980
DO  - 10.3133/ofr80267
UR  - https://pubs.usgs.gov/publication/ofr80267
ID  - ofr80267
ER  -