Superior, Arizona: An Old Mining Camp with Many Lives
Superior, Arizona An Old Mining Camp with Many Lives 3 highgrade ore bodies that had been missed by the former operators were mined on the 120foot level. A 35ton/day flotation mill was commissioned in late 1918 and commenced intermittent shipments of silverbearing concentrates that assayed 1,000 to 1,980 oz. silver/ton, 20% lead