TY - RPRT TI - Preliminary report on the geology of the Sedalia Mine area and its Proterozoic deposits of base-metal sulfides and gahnite, Chaffee County, Colorado AU - D. M. Sheridan AU - W. H. Raymond PY - 1984 DO - 10.3133/ofr84800 UR - https://pubs.usgs.gov/publication/ofr84800 ID - ofr84800 ER -