@misc{indiciaec3dfc151f3d3, title = {Coal resource occurrence and coal development potential maps of the Moorhead quadrangle, Powder River County, Montana, and Campbell County, Wyoming}, author = {Colorado School of Mines Research Institute}, year = {1979}, doi = {10.3133/ofr79787}, url = {https://pubs.usgs.gov/publication/ofr79787}, note = {Source identifier: ofr79787} }