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Topic
- Bodies of water 3
- Rivers 3
- Cliffs 2
- Landscapes 2
- Trees 2
- Conservation of natural resources 1
- Maps 1
- Northwest, Pacific 1
- River engineering 1
- Salmon fisheries 1
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Region
- Umatilla River >> Umatilla County >> Oregon >> United States 3
- Columbia River >> Douglas County >> Washington >> United States 1
- Deschutes River >> Sherman County >> Oregon >> United States 1
- Idaho >> United States 1
- Lemhi River >> Lemhi County >> Idaho >> United States 1
- Oregon >> United States 1
- Snake River >> Franklin County >> Washington >> United States 1
- Washington >> United States 1
- Yakima River >> Benton County >> Washington >> United States 1
Rights
- No Copyright - United States 3