TY - RPRT TI - Mining properties in Oregon that were involved in the DMA, DMEA, or OME mineral exploration programs, 1950-1974 AU - Thor H. Kiilsgaard PY - 1998 DO - 10.3133/ofr98464 UR - https://pubs.usgs.gov/publication/ofr98464 ID - ofr98464 ER -