The Coast Fork Willamette River is one of two forks that unite to form the
Willamette River
The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward b ...
in western
Oregon
Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
in the United States. It is about long, draining an area of the mountains at the south end of the
Willamette Valley
The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the eas ...
south of
Eugene.
Course
The Coast Fork Willamette River is formed in southwestern
Lane County, in the
Calapooya Mountains
The Calapooya Mountains are a mountain range in Lane and Douglas counties of southwestern Oregon in the United States. The range runs for approximately west from the Cascade Range between Eugene on the north and Roseburg on the south.
Geolo ...
, by the confluence of the
Little River and the
Big River. The Coast Fork flows north through the mountains, through the
Cottage Grove Lake
Cottage Grove Lake is a reservoir on the Coast Fork Willamette River in Lane County, Oregon, United States. The lake is about long.
Cottage Grove Dam, which impounds the lake, is long and high. It was completed in 1942 as one of the 13 dams ...
reservoir, to
Cottage Grove, where it receives the
Row River
The Row River is a river, approximately long, in Lane County, Oregon, United States. It rises in the Cascade Range and flows into the Coast Fork Willamette River near Cottage Grove. The stream was originally known as the "East Fork Coast Fork" ...
from the southeast. It continues north past
Creswell and joins the
Middle Fork from the south, about southeast of Eugene, to form the Willamette.
See also
*
List of rivers of Oregon
This is a partial listing of rivers in the state of Oregon, United States. This list of Oregon rivers is organized alphabetically and by tributary structure. The list may also include streams known as creeks, brooks, forks, branches and prongs, as ...
*
Willamette Riverkeeper
Willamette Riverkeeper is a non profit organization formed in 1996 in order to protect and restore the Willamette River's water quality and habitat.
Willamette River
The Willamette River runs through a large stretch of Oregon's Willamette Vall ...
References
External links
*
{{authority control
Rivers of Lane County, Oregon
Rivers of Oregon
Tributaries of the Willamette River