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The first major waterway would be the Columbia River that forms two/thirds of Oregon's northern border with Washington. Its headwaters start in Canada and it flows south and west then empties into the Pacific Ocean just west of Astoria, Oregon.
The second major waterway would be the Willamette River with its headwaters south of Eugene, Oregon, it flows north and empties into the Columbia River just north of Portland, Oregon.
Jude Beatty
Wiki User
∙ 12y agoThe first major waterway would be the Columbia River that forms two/thirds of Oregon's northern border with Washington. Its headwaters start in Canada and it flows south and west then empties into the Pacific Ocean just west of Astoria, Oregon.
The second major waterway would be the Willamette River with its headwaters south of Eugene, Oregon, it flows north and empties into the Columbia River just north of Portland, Oregon.
Wiki User
∙ 13y agoThe Columbia is the larges, the John Day is tributary to the Columbia.
Wiki User
∙ 11y agomajor river #1, major river #2, major river #3, major river #4, major river #5, and major river #6
Wiki User
∙ 15y agothe snake and middle-fork river.
Wiki User
∙ 15y agoColumbia, Willamette, and Rogue.
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Why is wheat important to Oregon?
it is one of three most important things to oregon.
Does Oregon have rivers?
i think it does have rivers
Which state has the most numbers of rivers protected by Wild Scenic Rivers Act?
Oregon by a landslide, 56 rivers designated as Wild & Scenic. Alaska sits at #2 with 25 rivers designated. Texas has 1 river, the Rio Grande, and it's so polluted people have died from swimming in it.
Where is the Oregon Rivers Museum in Springfield Oregon located?
The address of the Oregon Rivers Museum is: 87984 Heather Drive, Springfield, OR 97478
What are two important rivers in the western hemisphere?
The Mississippi and the Amazon rivers are the two largest and most important rivers in the western hemisphere.
What were the names of the rivers on the Oregon trail that the pioneers crossed and what did they look like?
Most likely the Willimette river.
What are some important rivers in China?
The Yellow River and the Yangtze River are the two largest and most important rivers in China.
Which were the two most important rivers in Mesopotamia?
The Tigris and Euphrates continue to be the two most important rivers in Mesopotamia.
What important roles do rivers play in the southeast?
Most rivers begin in the Appalachian mountains or rivers flow into the Gulf of Mexico.
What are the most important rivers in Ukraine?
Dnipro and Dnister
What are the three most important US rivers that flow south?
the Mississippi river, Ohio river, and the missouririver are the three most important rivers in the U.S. that flow south.
What is one of europes most important rivers?
The Danube is Europe's most important river.
