Columbia River
River in the Pacific Northwest of North America
Summary
The Columbia River is the largest river in the Pacific Northwest region of North America. The river forms in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is 1,243 miles long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven states of the United States and one Canadian province. The fourth-largest river in the United States by flow, the Columbia has the greatest flow of any river into the eastern Pacific.
Originally created by Rob Salzman
4/11/2001, 11:43:12 PM
Modified
6/8/2026, 6:11:34 PM
Recent revisions
information about the hanford vit plant to be more accurate (not glass flakes and the plant is operational)
Move 1 url. [[User:GreenC/WaybackMedic_2.5|Wayback Medic 2.5]] per [[WP:URLREQ#money.cnn.com]]
Reverting edit(s) by [[Special:Contributions/Artem Egorov Nimo|Artem Egorov Nimo]] ([[User_talk:Artem Egorov Nimo|talk]]) to rev. 1346401278 by Peaceray: Vandalism (from [[WP:UCP|contribs]]) [[w:en:WP:RW|(RW 16.1)]]
https://www.youtube.com/watch?v=RaoQjJoHOdc&pp=ygULcG9yeWEgYXppemk%3D
/* Course */ [[[[Canada–United States border]]|United States–Canada border]]→[[[[Canada–United States border]]]] as per [[WP:NOPIPE]]
distance was off by a factor of 10.
harv and sfn no target error
Normalize [[Template:Gibbs-Graveyard]]
another major tributary
Undid good faith revision, please note that 'Pacific Ocean' is uppercased per its direct link and proper name, thanks
/* Major tributaries */ Add wikilinks
Disambiguating links to [[Washington]] (link changed to [[Washington (state)]]) using [[User:Qwertyytrewqqwerty/DisamAssist|DisamAssist]].
/* Watershed */ Add wikilinks
/* Nutrient cycle */ Add wikilinks
/* Pollution */ Add wikilinks, slight copy edit (incl. updating tense in places)
/* Fish migration */ Add wikilinks, minor copy edit
ce
Fix wikilink to United States Army Corps of Engineers
/* Dams */ Add and adjust wikilinks, copy edit
