Middle Santiam River
|Middle Santiam River|
|Name origin: Kalapuya tribe that lived near the river until removal to the Grande Ronde Reservation|
|- location||Cascade Range, Willamette National Forest, Linn County, Oregon|
|- elevation||4,149 ft (1,265 m) |
|Mouth||South Santiam River|
|- location||Foster Reservoir, Linn County, Oregon|
|- elevation||640 ft (195 m) |
|- coordinates||Coordinates: |
|Length||39 mi (63 km) |
|Basin||104 sq mi (269 km2) |
The Middle Santiam River is a tributary of the South Santiam River, 38.5 miles (62.0 km) long, in western Oregon in the United States. It drains a remote area of the Cascade Range east of Sweet Home in the watershed of the Willamette River.
It rises in the Cascades in eastern Linn County in the Willamette National Forest, about half a mile west of Iron Mountain. It flows briefly north, then generally west and southwest through the mountains and Middle Santiam Wilderness. In central Linn County it is impounded at the Green Peter Dam to form the Green Peter Reservoir. Approximately 4 miles (6 km) downstream from the dam it joins the South Santiam from the northeast as an arm of Foster Reservoir.
|mouth, Foster Lake||Sweet Home|
|junction Quartzville Creek
Green Peter Lake
|RM 15.4||Yellowstone Mountain|
|RM 25.3||Chimney Peak|
Named tributaries of the Middle Santiam River from source to mouth are Cougar, Holman, Lake, South Pyramid, Bachelor, Pyramid, Donaca, Jude, and Egg creeks, followed by Fitt, Chimney, Sixes, Bear, and Twin Falls creeks. Below that are Cougar, Crash, Maple, Elk, Knickerbocker and Cave creeks. Then come Tally, Quartzville, Whitcomb, Rumbaugh, and Thistle creeks. Finally are Green Peter, Little Bottom, Alder, Coal, and Lewis creeks.
- 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.
- Google Earth elevation for GNIS coordinates
- "Middle Santiam River". Geographic Names Information System (GNIS). United States Geological Survey. November 28, 1980. Retrieved July 25, 2009.
- United States Geological Survey. "United States Geological Survey Topographic Map". TopoQuest. Retrieved July 25, 2009. The map quadrants include river mile (RM) markers for the river's first 35 miles (56 km). The additional length is approximate.
- "Willamette Basin Total Maximum Daily Loads (TMDLs): Chapter 9: South Santiam Subbasin TMDL" (PDF). Oregon Department of Environmental Quality. 2006. Retrieved August 9, 2010.
- "United States Topographic Map". United States Geological Survey. Retrieved January 15, 2016 – via ACME Mapper.