Average Grades of Existing MinesI foung the average grades of the existing "world class" mines interesting. 2.05 and 0.65 oz/Au/ton.
"The Red Lake camp hosts two high-grade, world class gold mines including Goldcorp's Red Lake Mine which has reserves of 3.8 million ounces of gold at an average grade of 2.05 oz/Au/ton in the High Grade Zone (HGZ). Combined, the Campbell/Red Lake ore bodies contain 23.6 million tons at an average grade of 0.65 oz/Au/ton (past production and reserves)."