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Topic
- River engineering 2
- Bodies of water 1
- Canals--Design and construction--Costs 1
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Region
- Celilo Canal >> Wasco County >> Oregon >> United States 2
- Columbia River >> Clatsop County >> Oregon >> United States 2
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- Snake River >> British Columbia >> Canada 2
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- Canoe Encampment Rapids (historical) >> Morrow County >> Oregon >> United States 1
- Celilo Falls (historical) >> Wasco County >> Oregon >> United States 1
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- Clatskanie River >> Columbia County >> Oregon >> United States 1
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