TY - RPRT TI - Geochemical analyses of rock and stream-sediment samples from Bald Rock, Bucks Lake, Chips Creek, and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California AU - M. L. Sorensen AU - Henry Pietropaoli AU - J.A. Peterson PY - 1982 DO - 10.3133/ofr82776 UR - https://pubs.usgs.gov/publication/ofr82776 ID - ofr82776 ER -