Yep, Alamosa, likely June 6, 1968 after we checked inside the roundhouse to see 483, 493, and whatever else was in there(Maybe 484 also), the day after we chased from Chama to Alamosa.
These engines were in this position a few years. Not sure when the last of the quartet was placed there, but likely there until the sale to the railroad and move to Antonito in 1970.
Greg