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If you were to fall into the water that has filled a big part of this former open mining pit, you'd meet very high concentrations of aluminum, copper, cadmium, cobalt, iron, manganese, zinc, arsenic and sulfate; and water that is about as acidic as vinegar. The bottom of the pit is an an elevation of 4,263 feet, the water level is at around 5,243 feet and still rising.
