Rotaries — Avalanche on the Mountain
Season 19 Episode 5 | 26m 57s | Video has closed captioning.
Explore a story of survival when men and machines vied with the mountains and the elements. When a winter storm shut down the west-east railroad route across America, a vision from the past—the rotary snow plow invented in the 1800s—helped rescue a trapped train crew and re-open this major rail line.
Aired: 04/08/14
