Columbia River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. To aid ship and barge navigation, locks have been built along the lower Columbia and its tributaries, and dredging has opened, maintained, and enlarged shipping channels. Since the early 20th century, dams have been built across the river for power generation, navigation, irrigation, and flood control.
The Columbia River has canals.
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The Columbia River has canals.
Create a short claim.
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The Columbia River has canals.
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