TY - RPRT TI - Preliminary report of coal drill-hole data and chemical analyses of coal beds in Campbell, Converse, and Sheridan Counties, Wyoming; and Big Horn, Richland, and Dawson Counties, Montana AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1976 DO - 10.3133/ofr76450 UR - https://pubs.usgs.gov/publication/ofr76450 ID - ofr76450 ER -