I was interested in what they mine there, so I searched around and found this very informative page: http://www.infomine.com/minesite/minesite.asp?site=kiddcree

I was interested in what they mine there, so I searched around and found this very informative page: http://www.infomine.com/minesite/minesite.asp?site=kiddcreek http://www.infomine.com/minesite/minesite.asp?site=kiddcreek The overview from that page: The Kidd Mine is in northern Ontario, 500 miles northwest of Toronto. The mine began operation in 1966, producing copper, zinc, indium, cadmium, silver and sulphuric acid. The deposit is one of the largest and richest volcanogenic massive sulphide deposits in the world. There is an underground mine, and metallurgical facilities consisting of a copper concentrator, smelter and refinery, and zinc, cadmium, indium plant, liquid sulphur dioxide and sulfuric acid plant. Kidd's concentrating, smelting and refining processes are among the most advanced in the world. The mine currently employs 1400 people and operates 7 days a week with two 12-hour shifts. The properties comprise 14 patented half lots covering 896 hectares of freehold mining land. Kidd Creek has three shafts known as the No. 2, No. 3 and No. 4 mines. Mine D is currently being developed to access reserves below the 6,800 foot to the 9,500 foot level. Commissioning for Mine D expansion began in 2004, and is scheduled to increase the operation's ultimate capacity, in stages, to 2.7Mt/yr of ore to 2012 and deepen Kidd Creek Mine to a final depth of 9,500 ft and extending the life of mine to 2017. Kidd is the deepest base metal mine in the world.