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Topic
- Oregon Audubon Society 8
- Dams 4
- Rivers--Oregon 4
- Lectures and lecturing 3
- Fishes--Conservation 2
- Flood control 2
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- Finley, William L. (William Lovell), 1876-1953 1
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- Willamette River >> Multnomah County >> Oregon >> United States 4
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- McKenzie River >> Lane County >> Oregon >> United States 1
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