Baltimore and Ohio (BO) 4011 GP40 Short term leased to the ATSF during the 1979-1980 time period, where BO 4011 was temporarily renumbered to BO 9011 to avoid conflicts with ATSFs own locomotive roster. Unit was renumbered back to BO 4011 when the lease ended Unknown photographer Riverdale, IL 4/19/1980 |