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- Izaak Walton League of America 20
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- Columbia River >> Clatsop County >> Oregon >> United States 6
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- Bonneville Dam >> Multnomah County >> Oregon >> United States 1
- Grand Coulee Dam >> Okanogan County >> Washington >> United States 1
- McKenzie River >> Lane County >> Oregon >> United States 1
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- Oregon State University. Libraries 20
