Middle Santiam River
Encyclopedia
The Middle Santiam River is a tributary of the South Santiam River
, 38.5 miles (62 km) long, in western Oregon
in the United States
. It drains a remote area of the Cascade Range
east of Corvallis
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 Lake reservoir. Approximately 4 mi (6 km) downstream from the dam it joins the South Santiam from the northeast as an arm of the Foster Lake
reservoir.
South Santiam River
The South Santiam River is a tributary of the Santiam River, about long, in western Oregon in the United States. It drains an area of the Cascade Range into the Willamette Valley east of Corvallis....
, 38.5 miles (62 km) long, in western Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. It drains a remote area of the Cascade Range
Cascade Range
The Cascade Range is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, and the notable volcanoes known as the High Cascades...
east of Corvallis
Corvallis, Oregon
Corvallis is a city located in central western Oregon, United States. It is the county seat of Benton County and the principal city of the Corvallis, Oregon Metropolitan Statistical Area, which encompasses all of Benton County. As of the 2010 United States Census, the population was 54,462....
in the watershed of the Willamette River
Willamette River
The Willamette River is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States...
.
It rises in the Cascades in eastern Linn County
Linn County, Oregon
Linn County is a county located in the U.S. state of Oregon. It is named in honor of Lewis F. Linn, a U.S. Senator from Missouri who advocated the American occupation of the Oregon Country. By the 2010 US census the population of Linn county was 116,672 showing a 13.2% growth since the 2000 census...
in the Willamette National Forest
Willamette National Forest
The Willamette National Forest is a National Forest located in the central portion of the Cascade Range of US state of Oregon.It comprises 1,675,407 acres making it one of the largest national forests. Over 380,000 acres are designated wilderness which include seven major mountain peaks...
, about half a mile west of Iron Mountain. It flows briefly north, then generally west and southwest through the mountains and Middle Santiam Wilderness
Middle Santiam Wilderness
The Middle Santiam Wilderness is a wilderness area located near Mount Washington in the central Cascade Range of Oregon, U.S., within the Willamette National Forest.-Topography:...
. In central Linn County it is impounded at the Green Peter Dam
Green Peter Dam
Green Peter Dam is a concrete gravity dam impounding the middle Santiam River in Linn County, Oregon. It was built to generate hydroelectricity, prevent flood damage, provide irrigation, and improve water quality downstream...
to form the Green Peter Lake reservoir. Approximately 4 mi (6 km) downstream from the dam it joins the South Santiam from the northeast as an arm of the Foster Lake
Foster Reservoir
Foster Reservoir is a reservoir created by Foster Dam on the South Santiam River near the city of Sweet Home, Oregon, United States. The reservoir is approximately 5.6 km long and contains approximately 494 ha when full. Primary use of the reservoir is recreation in the summer and flood...
reservoir.
| location | geolocation | usgs map |
|---|---|---|
| mouth, Foster Lake | 44.4162358°N 122.6339728°W | Sweet Home |
| junction Quartzville Creek Green Peter Lake |
44.4762353°N 122.5006389°W | Cascadia |
| RM River mile In the United States, a River mile is a measure of distance in miles along a river from its mouth. River mile numbers begin at zero and increase further upstream. The corresponding metric unit using kilometers is the River kilometer... 15.4 |
44.5004018°N 122.3956366°W | Yellowstone Mountain |
| RM River mile In the United States, a River mile is a measure of distance in miles along a river from its mouth. River mile numbers begin at zero and increase further upstream. The corresponding metric unit using kilometers is the River kilometer... 25.3 |
44.5170685°N 122.2506328°W | Chimney Peak |
| source | 44.4026239°N 122.1620152°W | Harter Mountain |
See also
- List of Oregon rivers
- Willamette National ForestWillamette National ForestThe Willamette National Forest is a National Forest located in the central portion of the Cascade Range of US state of Oregon.It comprises 1,675,407 acres making it one of the largest national forests. Over 380,000 acres are designated wilderness which include seven major mountain peaks...
- Middle Santiam WildernessMiddle Santiam WildernessThe Middle Santiam Wilderness is a wilderness area located near Mount Washington in the central Cascade Range of Oregon, U.S., within the Willamette National Forest.-Topography:...