TY - RPRT TI - Federal coal resource occurrence and coal development potential maps of the Headcut Reservoir 7 1/2-minute quadrangle, Sandoval County, New Mexico AU - Berge Exploration Inc. PY - 1979 DO - 10.3133/ofr791043 UR - https://pubs.usgs.gov/publication/ofr791043 ID - ofr791043 ER -