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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.
The Columbia Plateau is an important geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. [1] It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains , cut through by the Columbia River .
The Bureau of Reclamation's Columbia Basin Project focused on the generally dry region of central Washington known as the Columbia Basin, which features rich loess soil. [17] Several groups developed competing proposals, and in 1933, President Franklin D. Roosevelt authorized the Columbia Basin Project.
Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted. Map of the Columbia drainage Basin with the Columbia River highlighted and showing the major tributaries
Columbia Plateau, the geographic region in the Pacific Northwest commonly referred to as the Columbia Basin; Columbia Plateau (ecoregion), an ecoregion in the U.S. states of Oregon and Washington; Columbia River drainage basin, a drainage basin covering parts of U.S. and Canada; Columbia River Basalt Group, a set of rock layers that underlies ...
Dec. 5—CASHMERE — The Columbia Basin Project is making gradual progress toward completion with significant accomplishments for the Odessa Groundwater Replacement Program and other milestones ...
Jun. 14—David Moskowitz hasn't been everywhere in the Columbia River basin, but it's got to be close. Moskowitz, a photographer who lives in the Methow Valley, spent the last four years ...
The Columbia Basin Project (or CBP) in Central Washington, United States, ... The project region receives about 6 to 10 inches (250 mm) of annual rainfall, while the ...