TY - RPRT TI - Geochemical exploration studies in the Dillon, Montana-Idaho 1° x 2° quadrangle: Geochemical reconnaissance of mining districts in the southern Pioneer Mountains and vicinity, Beaverhead County, Montana AU - Byron R. Berger AU - J. L. Van der Voort AU - D. F. Siems AU - E. P. Welsch PY - 1979 DO - 10.3133/ofr791426 UR - https://pubs.usgs.gov/publication/ofr791426 ID - ofr791426 ER -