|Comments||Gogama and Mattagami First Nation ON, March 7-9, 2015. A CN Rail train carrying crude oil was derailed near the town of Gogoma in northern Ontario. In total, 30 out of the 94 tanker cars were derailed and caught fire. About one million gallons of petroleum product spilled during the incident, 21 cars sustained mild to severe damages and about 900 feet of track was destroyed. Some of the derailed tanker cars leaked crude oil into the Makami River, causing officials to issue a water advisory warning for the Mattagami First Nation community. Residents of Gogoma and Mattagami First Nation were advised to stay indoors for risk of smoke inhalation.