Watch The Battle for Donner Pass (1970) : Full Movie Online Free This is the incredible story of the men and equipment that battle the long cold winter months against the impossible odds to keep this historic mountain pass open! You'll see the Legendary Snowfighters of Donner Pass in action as they struggle against the winter fury of the High Sierras. This amazing story shot with the full cooperation of the Southern Pacific, bringing you the spectacular footage that takes you directly to the front lines of The Battle for Donner Pass!