Santa Fe reefers in Arizona on a long curve By Angela Cotey | October 19, 2015 | Last updated on January 7, 2021 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Four F7s take a train of refrigerator cars through a horseshoe curve near Gleed, Ariz., in the 1950s. A major line change in 1960 eliminated tough operating conditions like this for the Santa Fe across northern Arizona. Santa Fe photo