|Chicago Burlington & Quincy Railroad U25B 103 westbound at Naperville, Illinois on March 21, 1966, Kodachrome by Chuck Zeiler. Built in September 1964 (c/n 35197), it became BN 5427 and was retired in July 1981. It is seen here heading a westbound freight, trailing is a GP30, GP35, and two D&RGW GP30's. At the time of the photo, the CB&Q had run-through arrangements with a few railroads, the Rio Grande being one. The Burlington also had run-through arrangements with the UP and the NYC, and later, the PC. However, when the Q found one of its shiny new GE locomotives in MOW service on the PC, that arrangement was quickly terminated.