Winding through the S-curve just uphill from Cajon Pass' Mormon Rocks is BNSF Railway train Z-WSPLAC2-31U (Priority UPS-LTL Intermodal; Willow Springs IL to Los Angeles CA). With only 46 cars (all loaded), this train is just 4,491-feet (1,368.8 meters) in length, making its rear barely visible in this photo. (Most trains on Cajon Pass are over a mile long and show much more of the train in the background here.). BNSF ES44DCs 7414 and 7402, plus Dahs 9-44CW 5283 and AC4400CW 5666, are the power for this train. (Cajon Pass, California – January 2, 2025)