Subject
- Biotite -- Oregon -- Bald Mountain (Baker County)1
- Gold mines and mining -- Oregon -- Douglas County1
- Gold mines and mining -- Oregon -- Jackson County1
- Gold mines and mining -- Oregon -- Josephine County1
- Land use -- Oregon -- Douglas County -- Planning1
- Land use, Rural -- Oregon -- Douglas County -- Planning1
- Placer mining -- Oregon -- Douglas County1
- Placer mining -- Oregon -- Jackson County1
- Placer mining -- Oregon -- Josephine County1
- Regional planning -- Oregon -- Douglas County1
- Thrust faults (Geology) -- Oregon -- Douglas County1