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Coast Fork Willamette River facts for kids

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Coast Fork Willamette River
Coast Fork of the Willamette River, COrsinger 2006.jpg
The Coast Fork Willamette River
Coastforkwillamettemap.png
Map of the Willamette River basin with the Coast Fork highlighted
Country United States
State Oregon
County Lane
Physical characteristics
Main source Confluence of Big River and Garoutte Creek
Calapooya Mountains, Oregon
990 ft (300 m)
River mouth Willamette River
near Eugene and Springfield, Oregon
436 ft (133 m)
Length 40 mi (64 km)
Discharge
  • Location:
    Goshen, 6.4 miles (10.3 km) from the mouth
  • Minimum rate:
    36 cu ft/s (1.0 m3/s)
  • Average rate:
    1,558 cu ft/s (44.1 m3/s)
  • Maximum rate:
    58,500 cu ft/s (1,660 m3/s)
Basin features
Basin size 666 sq mi (1,720 km2)
Tributaries
  • Right:
    Row River

The Coast Fork Willamette River is one of two forks that unite to form the Willamette River in western Oregon in the United States. It is about 40 miles (64 km) long, draining an area of the mountains at the south end of the Willamette Valley south of Eugene.

Course

The Coast Fork Willamette River is formed in southwestern Lane County, in the Calapooya Mountains, by the confluence of the Little River and the Big River. The Coast Fork flows north through the mountains, through the Cottage Grove Lake reservoir, to Cottage Grove, where it receives the Row River from the southeast. It continues north past Creswell and joins the Middle Fork from the south, about 2 miles (3 km) southeast of Eugene, to form the Willamette.

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