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- Rivers--Washington (State) 95
- Dams 77
- Fish traps 28
- Salmon 22
- Fishways 18
- Chinook salmon 16
- Fish stocking 12
- Spillways 7
- Weirs 4
- Hoisting machinery 3
- Diseases 2
- Lakes 2
- Power-plants 2
- Rapids 2
- Rivers 2
- Trucks 2
- Waterfalls 2
- Canyons 1
- Fish hatcheries 1
- Fish screens 1
