Warren mining district 1880-2013
Copper 7,922,958,000 lbs.
Gold 2,792,000 ounces
Silver 102,215,000 ounces
Lead 324,256,000 lbs.
Zinc 355,048,000 lbs.
Manganese 28,000,000 lbs.
Miniature anode made at the Douglas Smelter
Briggs F David, 2015,History of the Warren (Bisbee) Mining District: Arizona Geological Society,Contributed report CR-15-B p. 7-8.