Yamhill River
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The Yamhill River is a tributary of the Willamette River, approximately 12 miles (19 km) long, in northwestern Oregon in the United States. It drains an area of the Oregon Coast Range west of the Willamette Valley, providing a fertile agricultural valley. It extends about 62 miles (100 km) to its farthest headwaters on the South Yamhill River.
It is formed in central Yamhill County, approximately two miles (3 km) east of McMinnville, by the confluence of the North Yamhill and South Yamhill rivers, both of which rise in the Coast Range. It flows east in a meandering course, joining the Willamette from the west approximately eight miles (13 km) southwest of Newberg, close to Dayton.
The river is named for the Yamhill, a tribe of Native Americans of the Kalapuya people who inhabited the region at the time of the arrival of European settlers. The Yamhill people were moved to the Grand Ronde Indian Reservation in 1855. During the 1830s and 1840s the area was extensively settled as part of the migration via the Oregon Trail.
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