TY - RPRT TI - Preliminary reconnaissance bedrock geologic map of part of the Casa Grande Mountains Quadrangle, Pinal County, Arizona AU - Joel R. Bergquist AU - Philip M. Blacet PY - 1978 DO - 10.3133/ofr78547 UR - https://pubs.usgs.gov/publication/ofr78547 ID - ofr78547 ER -