The Santiam River /ˌsæntiːˈæm/ is a tributary of the Willamette River, about 12 miles (19 km) long, in western Oregon in the United States. Through its two principal tributaries, the North Santiam and the South Santiam rivers, it drains a large area of the Cascade Range at the eastern side of the Willamette Valley east of Salem and Corvallis.

Quick Facts Etymology, Location ...

Santiam River
Near Interstate 5 in Linn County
Map of the Willamette River watershed with the Santiam River highlighted
Location of the mouth of the Santiam River in Oregon
Etymology	Kalapuya tribe that lived near the river until removal to the Grande Ronde Reservation[1]
Location
Country	United States
State	Oregon
County	Linn and Marion
Physical characteristics
Source	confluence of North Santiam and South Santiam rivers
• location	Linn and Marion counties, Oregon
• coordinates	44°41′21″N 123°00′27″W[2]
• elevation	222 ft (68 m)[3]
Mouth	Willamette River
• location	between Albany and Salem, Marion County, Willamette Valley, Oregon
• coordinates	44°45′00″N 123°08′20″W[2]
• elevation	164 ft (50 m)[2]
Length	12 mi (19 km)[lower-alpha 1]
Basin size	1,830 sq mi (4,700 km2)
Discharge
• location	Jefferson
• average	7,714 cu ft/s (218.4 m3/s)
• minimum	260 cu ft/s (7.4 m3/s)
• maximum	202,000 cu ft/s (5,700 m3/s)

Close

The main course of the river is short, formed in the Willamette Valley by the confluence of the North and South Santiam rivers on the border between Linn and Marion counties approximately 8 miles (13 km) northeast of Albany. It flows generally west-northwest in a slow meandering course to join the Willamette from the east approximately 8 miles (13 km) north of Albany.

Both the North and South Santiam rise in high Cascades in eastern Linn County. The Middle Santiam River joins the South Santiam where the South Santiam is impounded to form Foster Lake. The North Santiam is impounded to form the 400-foot (120 m) deep Detroit Lake in the Cascades. The Santiam is a major source of water supply for Salem.

The land surrounding Santiam river is the historic homeland of the Santiam band of the Kalapuya. Chief Alaquema (aka Joe Hutchins) of the Santiam negotiated with U.S. representative John Gain at the Santiam Treaty Council in 1851 before the forced removal of the Santiam and other Kalapuya tribes to the Grande Ronde reservation. After days of arguing, Alaquema told Gain, "We understand fully what you mean and that it may be better for us, but our minds are made up." He pointed to the land between the fork of the river on a map and said, "We wish to reserve this piece of land. We do not wish to leave this. We would rather be shot on it than removed." This treaty was however never ratified and in 1856 the Santiam were later forced to leave the fork in the Santiam River they had fought to preserve.^[5]

The Great Willamette Flood of 1861, which crested on December 2, destroyed many structures and animals on prairies near its confluence with the Willamette River and south of Knox Butte.^[6]

Santiam River Zone is staffed by the Santiam Type 2 initial attack hand crew and two engines based out of the Detroit Ranger District. Additionally the Willamette National Forest has fire crews on the Mckenzie and Middle Fork Ranger Districts.

• List of Oregon rivers
• Willamette Riverkeeper