A pair of BNSF Railway intermodal trains meet at Martinez Siding, on the east side of southern California's Cajon Pass. Each train is led by a GE ES44DC locomotive: 7201 is leading westbound train Q-LPCSCO1-26K (Logistic Park, Chicago to Southern California On-Dock), meeting train Z-LACALT1-28A (Los Angeles to Alliance, TX) being led by 7583, on a wintery November 28, 2009.