The last task, which was still under way in November, was a few miles north of Keystone where crews had to descend the rugged and steep south face of Thompson Pass., 1976-11, PCA0002-3b-7, Folder: PCA0002-3b. 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/17637 Accessed February 22, 2025.