Limit your search
Topic
- Mines and mineral resources 65
- Mining engineering 21
- Gold mines and mining 13
- Gold 12
- Hydraulic mining 9
- Buildings 7
- Minerals 6
- Metals--Refining 4
- Mine railroads 4
- Aerial tramways 3
- more »
Region
- Baker City >> Baker County >> Oregon >> United States 5
- Baker County >> Oregon >> United States 3
- Cottage Grove >> Lane County >> Oregon >> United States 3
- Corvallis >> Benton County >> Oregon >> United States 2
- Grants Pass >> Josephine County >> Oregon >> United States 2
- Jackson County >> Oregon >> United States 2
- Josephine County >> Oregon >> United States 2
- Lane County >> Oregon >> United States 2
- Marion County >> Oregon >> United States 2
- Colorado >> United States 1
- more »
Format
- image/tiff 65
