BNSF train S-LPCLHG1-02, led by BNSF ES44DC 7652, BNSF Dash 9-44CW 4470, BNSF Dash 9-44CW 5173, UP SD70M 4161 and BNSF Dash 9-44CW 657 (ex-ATSF 657), eases down southern California's Cajon Pass.