A number of techniques were used to clear the snow, including this giant heater at the bottom of the pass, which blew hot air up the pipe. Another method involved spraying hot water into the trench. Snowblowing and hand shoveling were also methods used., 1977-01, PCA0002-4a-8, Folder: PCA0002-4a. Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977, PCA 2. Alaska State Library - Historical Collections Finding Aids. https://alaska.libraryhost.com/repositories/2/archival_objects/17719 Accessed February 22, 2025.