TY - RPRT TI - Preliminary Reports on Iron Ore Deposits of the Iron Mountain District, Washington County, Idaho and Iron Ore Deposits in the Clearwater District, Idaho County, Idaho AU - J. Hoover Mackin PY - 1947 DO - 10.3133/ofr4714 UR - https://pubs.usgs.gov/publication/ofr4714 ID - ofr4714 ER -