TY - RPRT TI - Reconnaissance evaluation of water resources for hydraulic coal mining, Crested Butte coal field, Gunnison County, Colorado AU - William M. Alley AU - Linda J. Britton AU - Elaine L. Boyd PY - 1978 DO - 10.3133/ofr78938 UR - https://pubs.usgs.gov/publication/ofr78938 ID - ofr78938 ER -