Middle Santiam River facts for kids
Quick facts for kids Middle Santiam River |
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 Location of the mouth of the Middle Santiam River in Oregon
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| Country | United States |
| State | Oregon |
| County | Linn |
| Physical characteristics | |
| Main source | Iron Mountain Cascade Range, Willamette National Forest, Linn County, Oregon 4,149 ft (1,265 m) 44°24′09″N 122°09′43″W / 44.40250°N 122.16194°W |
| River mouth | South Santiam River Foster Reservoir, Linn County, Oregon 640 ft (200 m) 44°24′58″N 122°38′02″W / 44.41611°N 122.63389°W |
| Length | 39 mi (63 km) |
| Basin features | |
| Basin size | 104 sq mi (270 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.
| location | geolocation | usgs map |
|---|---|---|
| mouth, Foster Lake | 44°24′58″N 122°38′02″W / 44.416235°N 122.633972°W | Sweet Home |
| junction Quartzville Creek Green Peter Lake |
44°28′34″N 122°30′02″W / 44.476235°N 122.500638°W | Cascadia |
| RM 15.4 | 44°30′01″N 122°23′44″W / 44.500401°N 122.395636°W | Yellowstone Mountain |
| RM 25.3 | 44°31′01″N 122°15′02″W / 44.517068°N 122.250632°W | Chimney Peak |
| source | 44°24′09″N 122°09′43″W / 44.402623°N 122.162015°W | Harter Mountain |
Tributaries
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.
