@misc{indiciaeb9e7978f2d79, title = {Federal coal resource occurrence and coal development potential maps of the Big Rock Hill 7 1/2-minute Quadrangle, McKinley County, New Mexico}, author = {Berge Exploration Inc.}, year = {1985}, doi = {10.3133/ofr8029}, url = {https://pubs.usgs.gov/publication/ofr8029}, note = {Source identifier: ofr8029} }