TY  - RPRT
TI  - Preliminary report of coal drill-hole data and chemical analyses of coal beds in Sheridan and Campbell Counties, Wyoming, and Big Horn County, Montana
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
AU  - Montana Bureau of Mines and Geology
PY  - 1973
DO  - 10.3133/ofr73351
UR  - https://pubs.usgs.gov/publication/ofr73351
ID  - ofr73351
ER  -