I will check the records, but I am not sure there was a wye there. The Valley Line did branch off the La Veta Pass line on the other side of the bridge. I seem to remember Robert Richardson writing that the wye on the west end of Alamosa (one leg to Antonito and one leg to Creede) was actually built in the early 50s to accomodate the 3600 class 2-8-8-2s that were coming on the La Veta line (the connected the two sides to make a wye). By the time I was there in 71, the track up the Valley was a dead end spur that went a mile or two beyond the La Veta line. It had a long string of stock cars with a few other types thrown in. If there was a wye, it would have been south of the highway, but just east of the Rio Grande river trestle.