TY - RPRT TI - Coal resource occurrence and coal development potential maps of the Rangely NE quadrangle, Rio Blanco and Moffat Counties, Colorado AU - AAA Engineering and Drafting Inc. PY - 1980 DO - 10.3133/ofr791422 UR - https://pubs.usgs.gov/publication/ofr791422 ID - ofr791422 ER -