Alternate namesMary Etta Group (Gold Belt or Golden Belt tunnel, Hamill tunnel, Mary Etta, Silver Plume tunnel and , Silverleaf
RegionNA
Data scoreC
Coordinates39.67749, -105.78227
References
Lovering, T. S., 1935, Geology and ore deposits of the Montezuma quadrangle, Colorado: U.S. Geological Survey Professional Paper 178, 119 p.Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.