2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/67852.2 x 1.0 x 0.8 in.Copy of image held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: Front Range Minerals, Golden, CO.The mineral specimen comes from the Sherman Tunnel Mine, a silver mine located in Iowa Gulch near Leadville in the Leadville mining district, Lake County, Colorado. The Sherman Tunnel Mine was opened in 1968 and operated with interruptions until 1982.Digital image copyright owned by Front Range Minerals, Golden, CO.Mineral and rock specimensStillImage