TY - RPRT TI - Reconnaissance drilling in the Danforth Hills coal field, Moffat and Rio Blanco Counties, Colorado, September-October 1976 AU - Marith J. Reheis AU - James E. Peterson PY - 1977 DO - 10.3133/ofr7742 UR - https://pubs.usgs.gov/publication/ofr7742 ID - ofr7742 ER -