| Basis for focus area |
Mining districts and mineral occurrences; includes polymetallic veins and contact-metamorphic deposits in Baker County in eastern Oregon and adjacent areas in the Seven Devils Mining District of western Idaho. |
| Identified resources |
Small historical production of copper, gold, silver, and tungsten (pre-1950). |
| Production |
Utah mine (Oregon) produced Mn in 1917 and 1953 (31 to 37% Mn). |
| Status |
Past mining and exploration. |
| Estimated resources |
Unknown. |
| Geologic maps |
Horton and others (2017), scale 1:500,000. |
| Geophysical data |
Partly adequate (25%) aeromagnetic coverage. Inadequate aeroradiometric coverage. |
| Favorable rocks and structures |
Scheelite described in skarn and veins associated with gold vein prospects and mines. Also in placer. Historical mines and prospects located around margins of intrusions. |
| Deposits |
Davis deposit (MRDS dep_id: 10152825), Flagstaff mine (MRDS dep_id: 10152442), Broken Pick (MRDS dep_id: 10032758), Tussel mine (MRDS dep_id: 10070113), Utah mine (MRDS dep_id: 10032676). |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
Unknown. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Comments |
Numerous prospects in the Wallowa Mountains explored in the 1940s and 1950s. |
| Cover thickness and description |
Unknown. |
| Authors |
Jane M. Hammarstrom. |
| New data needs |
None requested at this time. |
| Geologic mapping and modeling needs |
None requested at this time. |
| Geophysical survey and modeling needs |
None requested at this time. |
| Digital elevation data needs |
Lidar inadequate. |
