TY - RPRT TI - Reconnaissance drilling in the Danforth Hills coal field, Moffat and Rio Blanco counties, Colorado, August-September 1976 AU - Marith J. Reheis PY - 1976 DO - 10.3133/ofr76870 UR - https://pubs.usgs.gov/publication/ofr76870 ID - ofr76870 ER -