9. The Great Porcupine Fire
The Great Porcupine Fire swept through Northeastern Ontario in July 1911, at the height of a local gold rush, and was so named because many people took shelter from the wildfire by retreating to boats on Porcupine Lake. The fire burned out nearly 500,000 acres of forest, along with numerous towns and mining camps. The death toll is unknown.
The survivors who took refuge on the lake have recounted some harrowing tales, including the story of a woman who gave birth while trapped on the boats. The nearby Salvation Creek got its name when it saved the lives of a group of miners, but others were less fortunate. When railcars of dynamite exploded, shock waves sent across the water caused a number of people to drown.
One mine boss took his 22 employees, his wife, and his daughter into the West Dome Mines. They suffocated when the fire engulfed the entrance.