Wow! Are you the photographer on all these? I'll bet my husband would order prints if they were available!
The next links are the same engines (487 and 488) near the same location 64 and 67 years earlier (1943 and 1940):
D&RGW 487, 06/23/1943, Eastbound, Freight, 21 cars, east of Lobato, 482 pushing
D&RGW 488, 06/16/1940, Westbound, Freight, 70 cars, near Lobato
Living history, indeed!
By the way, there will be a DVD commercially available, hopefully next month.