TY - RPRT TI - Preliminary bedrock geologic map of the east half of the Chiwaukum 4 SW Quadrangle, Chiwaukum Graben, Washington AU - John T. Whetten PY - 1980 DO - 10.3133/ofr80616 UR - https://pubs.usgs.gov/publication/ofr80616 ID - ofr80616 ER -