| AT&SF GP20u 3023, Corwith Yard, Chicago, Illinois, October 1979, photo by Chuck Zeiler. Built in July 1960 as AT&SF GP20 1123 (c/n 25596) on EMD Order 7584, it was renumbered to 3123 sometime between November 1969 and June 1970. It was rebuilt during February 1977 to GP20u 3023, later assigned BNSF number 2014, retired November 24, 1999. |