The Red Lake district is located 180 kilometres north of Dryden about 100 kilometres from the Manitoba border in northwestern Ontario. It spans 42,000 hectares and has produced over 29 million ounces of gold since 1949.
Red Lake Gold Mines includes the Red Lake and Campbell underground mining and processing complexes, and Cochenour, a potential new source of ore.
Ore from Red Lake Gold Mines is hoisted up either the Balmer or Campbell shafts, then processed at the Campbell mill using a conventional crushing and grinding circuit combined with a gravity concentration for free-milling gold or carbon-in-pulp for refractory gold. Gold recoveries average 94%.
When Goldcorp acquired Red Lake, tailings deposits and pond overflow, mine site drainage and other discharge from various mining companies had made Balmer Lake a barren body of water. Working with provincial and federal authorities, Red Lake upgraded historic tailings facilities, built new water treatment plants, and used wetland technology to reduce nutrient loadings to transform the lake into a thriving ecosystem with a healthy fish population.