Light Weight Mining

Light Weight Mining

Heavy Weight Mine Light Weight Mine, Heavy Weight Hill, Helvetia, Helvetia-Rosemont Mining District, Pima Co., Arizona, USA A former small underground Cu-Ag-Au-Be mine located in the SE sec. 14, T.18S., R.15E., mile NE of Helvetia and mile NE of the Copper World and Leader Mines, 28 miles SE of Tucson, on private ...

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