Union Pacific Intermodal train IKCLB-29, which originated in Kansas City, Missouri, is led by UP SD70ACe 8952, AC4400CW 6783 and ES44AC 8266. The train has just passed under the UP's Mojave Sub (visible as the girder bridge in the distance) as it traverses an S-curve on the Alhambra Sub, approaching West Colton Yard, which it will bypass as it is heading for Los Angeles. (Colton, California – January 2, 2025)