Extra 6311 East By Angela Cotey | August 20, 2019 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Southern Pacific Extra 6311 East climbs fog-shrouded Donner Pass in October 1957. This view from the caboose shows a four-unit F7 helper set 18 cars ahead. Philip R. Hastings photo