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The South Umpqua River is a tributary of the Umpqua River, approximately 115 miles (185 km) long, in southwestern Oregon in the United States. [4] It drains part of the Cascade Range east of Roseburg. The river passes through a remote canyon in its upper reaches then emerges in the populated South Umpqua Valley east of Canyonville.
The Umpqua River (/ ˈ ʌ m p k w ə / UMP-kwə) on the Pacific coast of Oregon in the United States is approximately 111 miles (179 km) long. One of the principal rivers of the Oregon Coast and known for bass and shad, the river drains an expansive network of valleys in the mountains west of the Cascade Range and south of the Willamette Valley, from which it is separated by the Calapooya ...
Quartz Mountain is a located 35 miles (56 km) east of Roseburg in Douglas County, Oregon, United States. [1] [3] Located within the Jackson Creek subbasin, a tributary of the South Umpqua River, Quartz Mountain rises to an elevation of 5,200 feet (1,585 m) in the Umpqua National Forest.
The Umpqua Basin is a watershed in the U.S. state of Oregon. It includes the drainages of the South Umpqua River , North Umpqua River , mainstem Umpqua River and the Smith River . The basin lies primarily within three ecoregions (Coast Range, Cascades and Klamath Mountains ) and contains a wide variety of vegetation.
The Minnesota River Valley follows the state's namesake, a fertile agricultural area, running from the South Dakota border to its junction with the Mississippi River in St. Paul. "Northern Minnesota" is a broader title that includes several regions, including the North Woods , and can be defined as any area within the 218 telephone area code.
Cow Creek is a medium-sized river in southwestern Oregon, a tributary of the South Umpqua River. It drains an area of over 400 square miles (1,000 km 2 ) on the western foothills of the Cascade Range and within the Oregon Coast Range .
Riddle is about 25 miles (40 km) south of Roseburg and 220 miles (350 km) south of Portland. It lies about 4 miles (6.4 km) west of Oregon Route 99 (Interstate 5) at an elevation of about 700 feet (210 m) above sea level. Cow Creek flows by Riddle before entering the nearby South Umpqua River. [8]
Gold had been discovered in Douglas County as early as the 1860s. In 1891, China Ditch , a 33-mile (53 km) artificial waterway dug with the help of hundreds of Chinese workers, began diverting water from Little River in the North Umpqua River basin to North Myrtle Creek to make hydraulic dredging with large machines possible near the headwaters ...