Columbia River topographic map
Interactive map
Click on the map to display elevation.
About this map
The Columbia's heavy flow and large elevation drop over a short distance, 2.16 feet per mile (40.9 cm/km), 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.
Other topographic maps
Click on a map to view its topography, its elevation and its terrain.
Ashnola River
United States of America > Washington > Okanogan County
Ashnola River, Okanogan County, Washington, United States of America
Average elevation: 2,019 m
Silver Star Mountain
United States of America > Washington > Okanogan County
Silver Star Mountain, Okanogan County, Washington, United States of America
Average elevation: 2,161 m