Search results
Results from the WOW.Com Content Network
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 River, Cascade Mountains, Oregon, (1876) by Vincent Colyer (oil on canvas). Beacon Rock is visible on the left. Detail from the Lewis and Clark Expedition map. The Willamette River is shown as the "Multnomah", while the Snake River is "Lewis's River". (See complete map.)
From 1892 until 1979, the Columbia River lightships guided vessels across the Columbia River Bar and an area known as the Graveyard of the Pacific. Columbia was the final lightship to be decommissioned on the U.S. West coast. She was replaced by an automated navigational buoy soon after. The buoy has since been retired.
Bathymetric map of the Columbia River mouth: isobaths at five-foot (1.5 m) intervals, 15–310 feet (4.6–94.5 m). Sandbars in yellow. The Columbia Bar is a system of bars and shoals at the mouth of the Columbia River spanning the U.S. states of Oregon and Washington.
Columbia River History. Northwest Power and Conservation Council "Appendix C. Pertinent Data on Selected Projects" (PDF). Columbia River Water Management Report, Water Year 2001. US Army Corps of Engineers. Archived from the original (PDF) on 2009-01-10
The river fell 10 feet (3.0 m) over a distance of 3,000 feet (910 m) at low-water. [32] In 1933 the rapids were submerged in Rock Island Pool, the reservoir of Rock Island Dam. At least two steamboats were wrecked at the rapids. The Selkirk wrecked at Rock Island Rapids on May 15, 1906 (see Shipwrecks of the inland Columbia River). In 1887 a ...
The book's arrival comes as the United States and Canada are renegotiating the Columbia River Treaty, a 60-year-old agreement that guides management of the river and its hydroelectric dams.
Dams of the Columbia River Basin. Click to view higher resolution and read legend. Hydroelectric generators in the basin sized by capacity. 17 dams on the British Columbia side of Canada-US border not shown. There are more than 60 dams in the Columbia River watershed in the United States and Canada. Tributaries of the Columbia River and their ...