The 1910 Rogers Pass avalanche was the deadliest avalanche in Canadian history, resulting in the deaths of 62 Canadian Pacific Railway workers.[4][5] In the late afternoon of March 4, 1910, an avalanche swept down the slopes of Cheops, burying the railroad tracks in snow. The men were working to clear the tracks when shortly before midnight the deadly slide hit, coming from the opposite side of the valley down Avalanche Mountain.