Santiam River

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
EtymologyKalapuya tribe that lived near the river until removal to the Grande Ronde Reservation
Location
CountryUnited States
StateOregon
CountyLinn and Marion
Physical characteristics
Sourceconfluence of North Santiam and South Santiam rivers
 • locationLinn and Marion counties, Oregon
 • coordinates44°41′21″N 123°00′27″W / 44.68917°N 123.00750°W / 44.68917; -123.00750
 • elevation222 ft (68 m)
MouthWillamette River
 • location
between Albany and Salem, Marion County, Willamette Valley, Oregon
 • coordinates
44°45′00″N 123°08′20″W / 44.75000°N 123.13889°W / 44.75000; -123.13889
 • elevation
164 ft (50 m)
Length12 mi (19 km)
Basin size1,830 sq mi (4,700 km2)
Discharge 
 • locationJefferson
 • average7,714 cu ft/s (218.4 m3/s)
 • minimum260 cu ft/s (7.4 m3/s)
 • maximum202,000 cu ft/s (5,700 m3/s)

The Santiam River /ˌsæntˈæm/ 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.