TY - RPRT TI - Preliminary geologic map of the White Rock Quadrangle, Rio Blanco and Moffat counties, Colorado AU - G. N. Pipiringos AU - G.C. Rosenlund PY - 1977 DO - 10.3133/mf837 UR - https://pubs.usgs.gov/publication/mf837 ID - mf837 ER -