In order to take advantage of a gentler grade, BNSF Intermodal train Z-ATGSBD7-23 crosses from Main 3 (with a 3% grade) to Main 2 at Summit, at an elevation of 3775-feet (1150.62 meters) is an intermodal train that originated on December 23 in Fairburn, Georgia. Its destination is San Bernardino, just another 25½ miles (41.03827 km) ahead. BNSF ES44C4 6951, ES44DC 7325 and ES44DC 7850 will battle gravity as the train descends from here on a 2.2% grade to the bottom of the mountain. (Cajon Pass, California – December 27, 2019)
