A Southern Pacific freight train, with SP SD45 9090 on the head end, holds the main at Bealville, in California’s Tehachapi Pass, on March 19, 1978. While the westbound waits for its meet with an eastbound, the conductor and rear brakeman discuss the situation. SP bay-window caboose 4103, carrying the markers for this train, is a C-40-4 class car built by Pacific Car & Foundry in 1961, and rebuilt (and renumbered) in the mid-1970s.