National Geographic : 1954 Jun
745 . S. Navy, Official Mountainous Snows Trap the City of San Francisco on Ill-fated Donner Pass Drifts, piling 25 feet high in spots, nearly cover the train and its three engines. Blizzards raged around this stricken Southern Pacific streamliner for three days and nights in January, 1952. Wheels froze on the tracks. Relief Diesels (right) pulled within yards, then stalled. Snowplows finally cleared U. S. Highway 40 (trench in trees) and rescued 256 passengers and crewmen. A century earlier, such snows doomed the Donner Party (page 740).