 In 2008, an old and worn out wooden bridge over the Montreal River which was built in 1937 was replaced with a new steel-concrete reinforced structure for safety reasons regarding the heavy traffic to/from the mine.Matachewan is on the southwest portion of the Abitibi greenstone belt and within the Abitibi gold belt.Between 1933 and 1957, the Young-Davidson Mine and the Matachewan Consolidated Mine produced 9.6 million tonnes of ore containing 3.1 grams of gold per ton and 0.93 grams per ton of silver.