| Yamhill River | |
|---|---|
 Yamhill River at Dayton | |
  Location of the mouth of the Yamhill River in Oregon | |
| Etymology | Uncertain but probably after a local Kalapuya tribe[2] |
| Location | |
| Country | United States |
| State | Oregon |
| County | Yamhill |
| Physical characteristics | |
| Source | confluence of South Yamhill River and North Yamhill River |
| • location | between McMinnville and Dayton, Yamhill County, Oregon |
| • coordinates | 45°13′33″N 123°08′42″W / 45.22583°N 123.14500°W[1] |
| • elevation | 152 ft (46 m)[3] |
| Mouth | Willamette River |
• location | Yamhill County, Oregon |
• coordinates | 45°13′47″N 122°59′52″W / 45.22972°N 122.99778°W[1] |
• elevation | 59 ft (18 m)[1] |
| Length | 11 mi (18 km)[4] |
| Basin size | 837 sq mi (2,170 km2)[5] |
The Yamhill River is an 11-mile (18 km) tributary of the Willamette River, in the U.S. state of Oregon. Formed by the confluence of the South Yamhill River and the North Yamhill River about 3 miles (5 km) east of McMinnville, it drains part of the Northern Oregon Coast Range. The river meanders east past Dayton to join the Willamette River at its river mile (RM) 55 or river kilometer (RK) 89, south of Newberg.[4][6]
It is likely that Yamhill was the 19th century white settlers' name for a tribe of Native Americans, a Kalapuya people who inhabited the region.[2] The Yamhill people were among 27 bands and tribes moved to the Grand Ronde Indian Reservation, formally established in 1857.[7]
- ^ a b c "Yamhill River". Geographic Names Information System. United States Geological Survey. November 28, 1980. Retrieved February 10, 2009.
- ^ a b McArthur, Lewis A.; McArthur, Lewis L. (2003). Oregon Geographic Names, Seventh Edition. Portland, Oregon: Oregon Historical Society Press. p. 1063. ISBN 0-87595-277-1.
- ^ Source elevation derived from Google Earth search using GNIS source coordinates.
- ^ a b United States Geological Survey. "United States Geological Survey Topographic Map: McMinnville, Dayton, and Saint Paul quads". TopoQuest. Retrieved February 10, 2009. The maps include river mile (RM) markers from the mouth to the source, just beyond RM 11.
- ^ "Map 1: The Yamhill River Basin & the Chehalem Valley" (pdf). Yamhill Basin Council. 2002. Retrieved February 11, 2009.
- ^ Oregon Atlas & Gazetteer (Map) (1991 ed.). DeLorme Mapping. § 59–60. ISBN 0-89933-235-8.
- ^ "Fort Yamhill State Heritage Area" (PDF). Oregon Parks and Recreation Department. Retrieved February 10, 2009.