Champion-Providence Mine was a consolidation of two adjoining gold mines in Nevada City, California subsequent to the California Gold Rush. After it became the Champion Group following annexation of additional adjacent mining concerns, it became one of the two most productive mining groups in the Nevada City Mining District,[1] alongside the North Star Mine, which purchased it in 1911.[2] The Champion-Providence Mine closed in 1920.[3]
- ^ "Champion-Providence Mine". U.S. Geological Survey. Retrieved 4 July 2016.
- ^ United States Army Corps of Engineers (February 2014). Cultural Resources Inventory for the Sierra Streams Institute – Providence Mine Cleanup, Nevada City, Nevada County, California (PDF) (Report). United States Environmental Protection Agency. p. 16.
- ^ Stevens, Weed & Neale 1922, p. 515.