A trainload of sugar beets holds the siding at Walong, more popularly known at the Tehachapi Loop, on October 22nd, 1972. This unit train is lead by U33C 8689, a pair of SD39s and a U30C.
A four-unit helper set, consisting of a pair of SD45s (one each from Southern Pacific and Cotton Belt), an SP SD40 and an SP U33C, rounds the Tehachapi Loop on October 22, 1972.