At Bondad, New Mexico on the Farmington Branch in 1967. Most of the traffic on the narrow gauge in the last years involved oil field supplies for the Farmington region.

http://www.railpictures.net/viewphoto.php?id=189178

The 498 leaving Durango with the last eastbound freight in 1968:

http://www.railpictures.net/viewphoto.php?id=189158

And the 483 and 487 at Monero, New Mexico in 1967:

http://www.railpictures.net/viewphoto.php?id=189121