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The Dalles (/ ˈ d æ l z / ⓘ) DALZ; formally the City of The Dalles and also called Dalles City, is an inland port and the largest city in Wasco County, Oregon, United States. The population was 16,010 at the 2020 census , and it is the largest city in Oregon along the Columbia River outside the Portland Metropolitan Area .
Portland, Oregon to Vancouver, Washington 45°37′29″N 122°41′27″W / 45.624722°N 122.690833°W / 45.624722; -122.690833 ( Burlington Northern Railroad Bridge
In the United States and Canada the term watershed is often used to mean drainage basin. The term Columbia Basin is used to refer not only to the entire drainage basin but also to subsets of the river's watershed, such as the relatively flat and unforested area in eastern Washington bounded by the Cascades, the Rocky Mountains, and the Blue ...
The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to 4,000 feet (1,200 m) deep, the canyon stretches for over eighty miles (130 km) as the river winds westward through the Cascade Range, forming the boundary between the state of Washington to the north and Oregon to the south. [1]
Listed in order going downstream: British Columbia: . Headwaters to the Canada–United States border: . Canal Flats; Fairmont Hot Springs; Windermere; Invermere; Radium Hot Springs ...
Left tributary Right tributary Length (km) Basin size (km 2) . Average discharge (m 3 /s) . Lower Columbia. Mouth to Bonneville Dam. Youngs: 43 257.6 14.7 Grays: 48 320 15.9 Elochoman
The Historic Columbia River Highway is an approximately 75-mile-long (121 km) scenic highway in the U.S. state of Oregon between Troutdale and The Dalles, built through the Columbia River Gorge between 1913 and 1922.
The Columbia Basin. The Columbia River drainage basin is the drainage basin of the Columbia River in the Pacific Northwest region of North America.It covers 668,000 km 2 or 258,000 sq mi. [1] In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern Washington.