Diesels In Dolores. On a typically hazy southern California day, the storage and service tracks at Union Pacific Railroad's Dolores Locomotive Facility in Carson, California are occupied with a variety of units on Saturday, April 2, 2022. More than 2 dozen SD60Ms with a mix of 2 window and 3 window "Triclops" cabs appear to have made their final revenue runs for the railroad. By the building, UP 6236 (née-SP 257, AC44CW) is noticeable for its semi-patched appearance, distinctive from the otherwise armour yellow field, but UP 6171 (née-SP 131, AC44CW) is a fellow vet of the Espee that is hiding in newer flag paint in plain sight.