Oregon's rivers were facing a growing threat: the rapid rise of loosely-regulated suction-dredge mining. Iconic Oregon Rivers Are Threatened by Destructive Mining Map of protected rivers. It also provides some limited safeguards for other rivers. SB 3, the Suction Dredge Mining bill placed a number of key salmon streams off limits to suction dredge mining. Fortunately in the spring of 2017 Oregon passed legislation increasing protections of our rivers. Fortunately in 2013 Oregon decided to stand up for it's wild rivers and waterways, salmon, clean water, and quality of life as well. Regrettably, these miners have since come to practice their "hobby" at Oregon's expense. Source: Historic Sites and Monuments Board of Canada, Minutes November 1987, June 1997 Commemorative Integrity Statement, August 1999.Suction dredge miners were forced to leave California when the state banned the practice due to damage to salmon habitat. 4 lies in its association with Klondike gold mining and in its illustration of the process of bucketline sluice dredging used by corporations to mine placer gold in the Klondike Gold Fields in the 1899-1966 period. It has since been preserved as a National Historic Site. There, it sank on its present site in 1959. From September 1941 to the fall of 1958 it mined Bonanza Creek. All of its major mechanical components were refurbished by the Yukon Consolidated Gold Corporation and encased in a new wooden hull and superstructure built on Bonanza Creek. It was dismantled when paying gravels ran out in 1940. ![]() to mine the gravels of the Klondike River Valley. 4 was constructed in 1912-13 by the Canadian Klondike Mining Co. ![]() 4 was declared a National Historic Site of Canada as symbolic of: the importance of dredging operations in the Yukon (1899-1966), and aspects of the evolution of gold mining in the Klondike from early labour-intensive to later corporate industrial phases of gold extraction.
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