South Santiam River

South Santiam River
Fly fishing on the South Santiam River just downstream of Sweet Home
Name origin: Kalapuya tribe that lived near the river until removal to the Grande Ronde Reservation[1]
Country United States
State Oregon
County Linn
Source Jumpoff Joe Mountain
 - location Cascade Range, Willamette National Forest, Linn County, Oregon
 - elevation 1,932 ft (589 m) [2]
 - coordinates 44°22′27″N 122°13′05″W / 44.37417°N 122.21806°W / 44.37417; -122.21806 [3]
Mouth Santiam River
 - location Willamette Valley, Linn County, Oregon
 - elevation 217 ft (66 m) [3]
 - coordinates 44°41′12″N 123°00′24″W / 44.68667°N 123.00667°W / 44.68667; -123.00667Coordinates: 44°41′12″N 123°00′24″W / 44.68667°N 123.00667°W / 44.68667; -123.00667 [3]
Length 69 mi (111 km) [4]
Basin 1,040 sq mi (2,694 km2) [5]
Discharge for Waterloo, 23.3 miles (37.5 km) above the mouth
 - average 2,946 cu ft/s (83 m3/s)
 - max 95,200 cu ft/s (2,696 m3/s)
 - min 67 cu ft/s (2 m3/s)
Location of the mouth of the South Santiam River in Oregon

The South Santiam River is a tributary of the Santiam River, about 69 miles (111 km) long, in western Oregon in the United States. It drains an area of the Cascade Range into the Willamette Valley east of Corvallis.[4]

It rises in the Cascades in southeastern Linn County in the Willamette National Forest at 44°22′27″N 122°13′05″W / 44.374291°N 122.218128°W / 44.374291; -122.218128 (South Santiam River source).[3] From this source, the confluence of Sevenmile and Squaw creeks, it flows briefly north, then generally west through the Western Cascades and Cascadia. It then flows a handful of miles before entering Foster Reservoir. At Foster Reservoir the Middle Santiam River joins the South Santiam. Downstream from the reservoir it flows west past Sweet Home, where it turns northwest, passing through the foothills into the Willamette Valley near Lebanon. It joins the North Santiam River from the southeast to form the Santiam approximately 15 mi (24 km) northeast of Lebanon, about 10 miles (16 km) east of the confluence of the Santiam with the Willamette River.[4]

U.S. Route 20 follows the valley of the river from near its headwaters in the mountains to the Willamette Valley northwest of Lebanon.[4]

Tributaries

Named tributaries from source to mouth are Sevenmile and Squaw creeks at the headwaters, then Three, Sheep, Elk, Soda Fork, Stewart, and Keith creeks. Then come Boulder, Little Boulder, Trout, Falls, Moose, Canyon, and Wolfe creeks. Further downstream are Dobbin, Soda, Cabin, Bucksnort, Mouse, and Deer creeks.[4]

Below those are Shot Pouch Creek and the Middle Santiam River. Then come Ralston, Gadney, Wiley, Ames, Roaring, McDowell, Hamilton, and Onehorse creeks followed by Spring Branch. Entering the lower reaches of the river are Crabtree, Thomas, and Mill creeks, and the North Santiam River.[4]

See also

References

  1. ↑ McArthur, Lewis A.; McArthur, Lewis L. (2003). Oregon Geographic Names (Seventh ed.). Portland, Oregon: Oregon Historical Society Press. p. 848. ISBN 0-87595-277-1.
  2. ↑ Google Earth elevation for GNIS coordinates
  3. 1 2 3 4 "South Santiam River". Geographic Names Information System (GNIS). United States Geological Survey. November 28, 1980. Retrieved July 25, 2009.
  4. 1 2 3 4 5 6 "United States Topographic Map". United States Geological Survey. Retrieved December 1, 2015 – via ACME Mapper. The map quadrants include river mile (RM) markers for the river's entire length.
  5. ↑ "Watershed Issues". South Santiam Watershed Council. Retrieved July 25, 2009.

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