A trio of SD40-2s, or what Union Pacific now calls "SD40N"s, work a cut of cars in the railroad’s West Colton Yard: UP 1554 (ex-UP 3225), UP 1609 (ex-UP 3413) and UP 1675 (ex-UP 3254, ex-UP 8014, née-UP 3254). (Colton, California – November 23, 2021)