Limit your search
Topic
- Rivers--Oregon 30
- Dams 10
- Salmon 6
- Fishways 5
- Forests and forestry 4
- Power-plants 3
- Hydroelectric power plants 2
- Lampreys 2
- Waterfalls 2
- Fish hatcheries 1
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Region
- Clackamas County >> Oregon >> United States 30
- Clackamas River >> Clackamas County >> Oregon >> United States 30
- Willamette River >> Multnomah County >> Oregon >> United States 30
- River Mill Dam >> Clackamas County >> Oregon >> United States 7
- Delph Creek >> Clackamas County >> Oregon >> United States 4
- Cazadero Dam >> Clackamas County >> Oregon >> United States 3
- Eagle Creek >> Clackamas County >> Oregon >> United States 3
- Lake Harriet >> Clackamas County >> Oregon >> United States 1
- Oak Grove Fork Clackamas River >> Clackamas County >> Oregon >> United States 1
Format
- image/tiff 17
- image/jpeg 13
Collection
- Pacific Northwest Stream Survey 30
