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NW Stream Survey

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Subject
Dams (3)
Hoisting Machinery (3)
Rivers -- Washington (3)
Fish Traps (1)

Creator
Witter, Alfred S. (3)

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 Image: Image Title: Subject: Description/Notes:

1. Central fish hoist and elevator Central fish hoist and elevator Dams; Rivers -- Washington; Hoisting machinery Central fish hoist at Rock Island Dam

2. Central fish hoist and elevator Central fish hoist and elevator Dams; Rivers -- Washington; Hoisting machinery Central fish hoist and elevator at Rock Island Dam

3. Gate into hoist at trap Gate into hoist at trap Dams; Rivers -- Washington; Fish traps; Hoisting machinery View from brail into fish hoist at Rock Island Dam
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