Amtrak's Pacific Surfliners are normally powered by F59PHI diesels, but on New Year's Day 2012 train #580 was seen blasting through the Orange, California, Metrolink station behind P42DC 155 (with a homemade numberboard).
Stretching from San Luis Obispo to San Diego, the Surf Line has become Amtrak's second busiest route. See the Pacific Surfliner and San Diegan in action along with trains from predecessors Santa Fe and Southern Pacific.