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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 ...
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 ...
In 1965, US Steel donated the Soudan Mine to the State of Minnesota to use for educational purposes. [5] The primary underground mining method used was known as cut and fill. This involved mining the ceiling and using Ely Greenstone and other waste rock to artificially raise the floor at the same rate as the ceiling was being mined out.
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]
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"Panning out" ~ Stereoscopic view of print taken by the U.S. Geological and Geographic Survey of the Territories ~ circa 1874–1879 Gold panning is a simple process. Once a suitable placer deposit is located, some alluvial deposits are scooped into a pan, where they are then wetted and loosed from attached soils by soaking, fingering, and aggressive agitation in water.
South Umpqua River 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 .