The abitibi greenstone belt in which the gold belt is situated has produced over 35 billion pounds of zinc, 15 billion pounds of copper, and 400 million ounces of silver, most of which was mined in and around Timmins, Ontario. ^{[ 15 ] [ 16 ]} The Greenstone Belt is part of a larger  granite -greenstone- gneiss terrain called the Abitibi subprovince, part of the Archean Superior Province. They know what they're doing!