Image:Columbia.png

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The Columbia River in North America

Map of dams

Caption: The Columbia River carved the Interior Columbia River Basin from the landscape of seven Western states and two Canadian provinces. The river itself flows from its headwaters in British Columbia, Canada through only two states, forming part of the Washington-Oregon border, the vast Interior Columbia River Basin is defined by the area drained by the river and its many tributaries. This 58-million-hectare area (about the size of France) extends roughly from the crest of the Cascade Mountains of Oregon and Washington east through Idaho to the Continental Divide in the Rocky Mountains of Montana and Wyoming, and from the headwaters of the Columbia River in Canada to the high desert of northern Nevada and northwestern Utah.

Primary Source: U.S. Army Corps of Engineers, North Pacific Region (http://www.nwd-wc.usace.army.mil/report/colmap.htm)

Secondary source: http://en.wikipedia.org/wiki/Image:Columbia.png

Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.

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File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current05:15, 2 October 2007683×760 (40 KB)Peteforsyth (turned Vancouver Island white -- can't see any reason it should be green, that's confusing.)
05:12, 5 May 2005683×760 (33 KB)Mattes (new)