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- Rivers--Washington (State) 118
- Dams 74
- Fish traps 29
- Fishways 19
- Waterfalls 16
- Chinook salmon 15
- Salmon 13
- Fish stocking 9
- Rivers 8
- Chum salmon 5
- Spillways 5
- Weirs 4
- Hoisting machinery 3
- Rivers--Oregon 3
- Steelhead (Fish) 3
- Canyons 2
- Hunting 2
- Power-plants 2
- Rapids 2
- Spawning 2