Marathon Gold Corporation acquires, explores for, and develops mineral resource projects in Canada. The company explores for gold, and precious and base metal deposits. Its flagship property is the Valentine Lake gold property with five mineralized deposits located in Central Region of Newfoundland and Labrador, Canada. The company was incorporated in 2009 and is headquartered in Toronto, Canada. As of January 24, 2024, Marathon Gold Corporation operates as a subsidiary of Calibre Mining Corp.