Osisko Mining Inc. is a Canadian mineral exploration company that focuses on the acquisition, exploration, and development of precious metal resource properties in Canada. The company was founded in 2003 and is headquartered in Montreal, Quebec. Osisko Mining's flagship project is the Windfall Lake gold project located in the Abitibi greenstone belt of Quebec. The company also has other exploration projects in Quebec and Ontario. Osisko Mining is listed on the Toronto Stock Exchange under the symbol OSK.