Big Sky Blue was the Great Northern's last paint scheme before the Burlington Northern merger. It was introduced in the spring of 1967 by a secretly-painted train of business cars, and was to be applied to all rolling stock. However, not everything got repainted by the 1970 merger date.
Great Northern Box Car
This box car (GN 138407) was built in May, 1967 by the Pacific Car & Foundry. It is a 50' plate-C high capacity box car, with cushion underframe, ABD brakes, roller-bearings, and double plug doors. It is painted in the Big Sky Blue paint scheme.