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Columbia river
2
Northwest,Pacific -- History -- 20th Century
2
United States --Fishing Commercial -- 20th Century
2
fish ladders
2
laid out
2
river
2
salmon industry
2
1000 to 1200 miles
1
Alaska
1
Aleutian islands
1
American
1
Barring
1
Bonneville dam
1
British Columbia port
1
Canadian
1
Cape Flattery
1
Down stream
1
Environment
1
Environmental Law
1
Frank A. Banks
1
Frank T. Bell
1
Grand Coulee dam
1
Grand Coulee dams
1
Grand coulee
1
Halibut
1
Halibut range
1
Harlan B. Holmes
1
Harold Lokken
1
Manager
1
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