TY - RPRT TI - Maps showing geochemical analyses of the Ishi, Mill Creek, Polk Springs, and Butt Mountain further planning areas, Tehama and Plumas counties, California AU - Jocelyn A. Peterson AU - Robin Bradley AU - K. A. Johnson PY - 1982 DO - 10.3133/mf1340b UR - https://pubs.usgs.gov/publication/mf1340B ID - mf1340B ER -