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- Rivers--Washington (State) 81
- Dams 67
- Fish traps 24
- Fishways 16
- Chinook salmon 15
- Salmon 13
- Fish stocking 10
- Spillways 5
- Weirs 4
- Hoisting machinery 3
- Diseases 2
- Power-plants 2
- Rapids 2
- Rivers 2
- Waterfalls 2
- Canyons 1
- Fish screens 1
- Lakes 1
- Martin, Clarence D. (Clarence Daniel), 1886-1955 1
- Trucks 1
