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Home > Mines, Quarries & Sites > Formosa Copper Mine

Formosa Copper Mine (United States)

The Formosa Mine Superfund Site is located on Silver Butte, about 10 miles south of the town of Riddle, in Douglas County,Oregon. The site was added to the National Priorities List (NPL) in 2007.

The acid rock drainage flowing from the mine has severely degraded 13 miles of Middle Creek and the South Fork of Middle Creek, affecting macroinvertebrates, resident fish, coastal steelhead trout, and Oregon coastal coho salmon. EPA is completing complete a remedial investigation and feasibility study that will lead to a final cleanup plan for the site.
Source: EPA

Narrative summary.

Photos of Formosa Copper Mine

Photographs Of Formosa
Photographs Of Formosa (2 photos)
Last updated April 15th 2011 by carnkie
Historic Photographs Of Formosa
Historic Photographs Of Formosa (0 photos)
Last updated April 15th 2011 by carnkie

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