From the Goldon Resources website:

Gold mining and mining and exploration in general are key contributors to the Ontario economy. The Province currently employs over 100,000 people, directly and indirectly, in the mining sector and the value of mineral production was $9.8-billion in 2013. Ontario, with more than 40 mine sites in operation, is Canada’s largest producer of gold (46%*), nickel (40%*), copper (33%*) and platinum group metals (82%*).