Limit your search
Topic
- Hydroelectric power plants 3
- Northwest, Pacific 3
- Water-power 3
- Dams 2
- Irrigation 2
- Agriculture 1
- Bodies of water 1
- Conservation of natural resources 1
- Fisheries 1
- Industrialization 1
- more ยป
Region
- Columbia River >> Douglas County >> Washington >> United States 3
- Bonneville Dam >> Multnomah County >> Oregon >> United States 2
- Grand Coulee Dam >> Okanogan County >> Washington >> United States 2
- Oregon >> United States 2
- Washington >> United States 2
- Idaho >> United States 1
- Montana >> United States 1
- Snake River >> Franklin County >> Washington >> United States 1
Type
- Text 2
- Collection 1
Institution
- University of Oregon 3