S2 E17: The 1910 Stevens Pass Avalanche

An express passenger train leaving Spokane and bound for Seattle ended up stranded on Stevens Pass when freak weather conditions caused a series of avalanches in late February, 1910. Then, after spending nearly a week parked by the small town of Wellington, a large slab avalanche swept the train 150 feet off the track, killing 96 people - the most deadly avalanche in American history.