The Santiam River 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.
Marys River is a 40-mile (64 km) tributary of the Willamette River in the U.S. state of Oregon. From its source at the confluence of its east and west forks near Summit, it flows generally southeast from the Central Oregon Coast Range to Corvallis.
The Calapooia River is an 80-mile (130 km) tributary of the Willamette River in the U.S. state of Oregon.
The Smith River is a 90-mile (140 km) tributary of the Umpqua River in the U.S. state of Oregon. It drains 352 square miles (910 km2) of the Central Oregon Coast Range between the watershed of the Umpqua to the south and the Siuslaw River to the north.
The Luckiamute River is a tributary of the Willamette River, about 61 miles (98 km) long, in western Oregon in the United States. It drains an area of Central Oregon Coast Range and the western Willamette Valley northwest of Corvallis.
The Long Tom River is a 57-mile (92 km) tributary of the Willamette River in western Oregon in the United States. It drains an area at the south end of the Willamette Valley between Eugene and Corvallis.
The South Santiam River is a tributary of the Santiam River, about 69 miles (111 km) long, in western Oregon in the United States. It drains an area of the Cascade Range into the Willamette Valley east of Corvallis.
The Calapooya Mountains are a mountain range in Lane and Douglas counties of southwestern Oregon in the United States. The range runs for approximately 60 miles (97 km) west from the Cascade Range between Eugene on the north and Roseburg on the south.
Blue River is a tributary of the McKenzie River in Linn and Lane counties in the U.S. state of Oregon. From its source at the confluence of Mann and Wolf creeks in the Cascade Range, it flows generally southwest to join the McKenzie near the community of Blue River. Saddle Dam and Blue River Dam block the river about 2 miles (3 km) from its mouth to form Blue River Reservoir, a multipurpose impoundment built in 1968 by the United States Army Corps of Engineers.
Scoggins Creek, formerly known as "Scoggin Creek", is a 19-mile (31 km) tributary of the Tualatin River in Tillamook and Washington counties in the U.S. state of Oregon. It is named for pioneer settler Gustavus Scoggin.
Kiger Creek is a tributary of Swamp Creek in Harney County in the U.S. state of Oregon. It originates on Steens Mountain and flows generally north through Kiger Gorge to meet Swamp Creek near the unincorporated community of Diamond. The combined streams flow into Diamond Swamp and the Malheur National Wildlife Refuge.
Hills Creek is a tributary, about 16 miles (26 km) long, of the Middle Fork Willamette River in the U.S. state of Oregon. From its headwaters on Juniper Ridge in the Cascade Range, the creek flows northwest through Lane County and the Willamette National Forest for its entire course.
Salt Creek is a tributary, 30 miles (48 km) long, of the Middle Fork Willamette River in Lane County in the U.S. state of Oregon. It is named for salt springs along its banks that are used as licks by deer. The stream originates as an outflow of Lower Betty Lake in the forested Cascade Range just southeast of Waldo Lake. From its source, Salt Creek flows generally south, through Gold Lake, to Route 58, which it then follows mainly northwest for about 26 miles (42 km) to its mouth at the Middle Fork Willamette River just below Hills Creek Dam. At Salt Creek Falls—roughly 4 miles (6.4 km) west of Willamette Pass and a little more than 22 miles (35 km) upstream from the mouth—the stream plunges 286 feet (87 m), discharging an average of 50,000 U.S. gallons (190,000 L) of water per minute, or 111 cubic feet per second (3.1 m3/s). Below the falls, the creek enters a narrow canyon shaped by glaciation and basalt lava flows from higher in the Cascades. McCredie Hot Springs, at the former community of McCredie Springs, are natural hot springs along the lower half of Salt Creek beside Route 58.
Mosby Creek is a 21-mile (34 km) tributary of the Row River in Lane County, in the U.S. state of Oregon. It begins at the confluence of the east and west forks of the creek near the Calapooia Divide and the border with Douglas County. From its source it flows generally north-northwest to meet the river slightly east of Cottage Grove and about 4 miles (6 km) from the larger stream's confluence with the Coast Fork Willamette River.
Gettings Creek is a tributary of the Coast Fork Willamette River in Lane County, in the U.S. state of Oregon. Flowing generally west from near Prune Hill, it turns sharply north as it nears Interstate 5 (I-5). It enters the larger stream near Walker, between Cottage Grove to the south and Creswell to the north. The I-5 rest area called Gettings Creek lies next to the creek.
French Pete Creek is a tributary of the South Fork McKenzie River in Lane County, in the U.S. state of Oregon. It flows generally west through the Three Sisters Wilderness to the south end of Cougar Reservoir, about 11 miles (18 km) from the larger river's confluence with the McKenzie River. The creek has two named tributaries—Olallie Creek and, further downstream, Pat Creek—both of which enter from the right.
The Little River is a tributary of the Coast Fork Willamette River in the U.S. state of Oregon. Rising along the Calapooya Divide near the border between Lane and Douglas counties, it flows generally west-northwest to meet the Big River. The combined Big and Little rivers form the Coast Fork near Black Butte. The butte is a dark-colored mountain, the site of a former mine, and the site of a former post office.
Garoutte Creek is a tributary of the Little River in the U.S. state of Oregon. Rising along the Calapooya Divide near the border between Lane and Douglas counties, it flows generally northeast to meet the larger stream near Black Butte. The butte is a dark-colored mountain, the site of a former mine, and the site of a former post office. Little River joins Big River a few miles downstream to form the Coast Fork Willamette River.
Oak Creek is a tributary, about 3.5 miles (5.6 km) long, of Marys River in Benton County in the U.S. state of Oregon. The stream descends from forested hills north of Corvallis through the northwest part of the city and across the campus of Oregon State University.
Horse Creek is a tributary of the McKenzie River in near the unincorporated community of McKenzie Bridge in Lane County in the U.S. state of Oregon. It begins in the Cascade Range in the Three Sisters Wilderness of the Willamette National Forest. Its headwaters are near the Deschutes County border and the Pacific Crest Trail. It flows generally northwest to meet the river about 65 miles (105 km) upstream of the McKenzie's confluence with the Willamette River.
