Osisko Development Corp., a gold mining company, engages in the exploration, evaluation, and development of mining projects. The company's flagship project is the Cariboo Gold project covering an area of 2,071 square kilometers of mineral rights located in British Columbia, Canada. It also holds interest in James Bay Properties located in Québec, Canada; and San Antonio Gold Project and Guerrero Properties located in Guerrero, Mexico. The company is headquartered in Montreal, Canada.