TY - RPRT TI - Chemical analyses of stream deposits in the West Pioneer Mountains, Beaverhead County, Montana AU - David F. Siems AU - Eric P. Welsch AU - Wendy S. Speckman PY - 1980 DO - 10.3133/ofr80309 UR - https://pubs.usgs.gov/publication/ofr80309 ID - ofr80309 ER -