Columbia River topographic map
Interactive map
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About this map
Name: Columbia River topographic map, elevation, terrain.
Location: Columbia River, United States (45.54445 -124.07186 52.12484 -115.84933)
Average elevation: 3,615 ft
Minimum elevation: -7 ft
Maximum elevation: 13,619 ft
The Columbia's heavy flow and large elevation drop over a short distance, 2.16 feet per mile (40.9 centimeters per kilometer), give it tremendous capacity for hydroelectricity generation. In comparison, the Mississippi drops less than 0.65 feet per mile (12.3 cm/km). The Columbia alone possesses one-third of the United States's hydroelectric potential. In 2012, the river and its tributaries accounted for 29 GW of hydroelectric generating capacity, contributing 44 percent of the total hydroelectric generation in the nation.
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