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Portland, the largest city in Oregon, is located on the Columbia River at the northern end of the Willamette Valley. On clear days, Mount Hood highlights the Cascade Mountains backdrop to the east. The Columbia is the largest river in the American Northwest and is navigable up to and well beyond Portland. It is also the only river to fully cross the Cascade Range, and has carved the Columbia River Gorge, which is seen in the left-central part of this view. A series of dams along the river, at topographically favorable sites, provide substantial hydroelectric power to the region. This perspective view was generated using topographic data from the Shuttle Radar Topography Mission (SRTM), a Landsat satellite image, and a false sky. Topographic expression is vertically exaggerated two times. Photo Credit: NASA/JPL/NIMA [0003-0612-3114-5117] by 0003
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Keywords
cascade mountains, cascade range, columbia river, columbia river gorge, earth science, geography, jpl, mount hood, mt hood, nasa, or, oregon, portland, willamette valley
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