Rear DPU BNSF 5620 on a westbound coal empty at New Hillrose, CO, crossing the S Platte River. Aug 25, 2019.

DRGW 5359 leads a northbound coal empty through Castle Rock, CO, on Apr 26, 1982. At the time, Castle Rock had a population of LT 10,000, by 2019, had hit 70,000 or more.

DRGW 5771 at Glenwood Springs, CO, with train #117. Nov 21, 1977.

Rear pushers DRGW 3104 and 3105 on train #749 at Edna, CO, July 27, 1977.

Rear DPU BNSF 7351 on a westbound oil train at New Hilrose, CO. Aug 25, 2019.

BNSF 7551 leads a westbound oil train at New Hilrose, CO, crossing the S Platte River. Aug 25, 2019.

DRGW 5372 heads east with Train #702, at Hitchens, CO, on the DRGW Craig Subdivision. July 27, 1977.

DRGW 5341 with train #531, an empty returning to the mine for loading. Seen near Energy, CO on Jul 27, 1977.

DRGW 5344 sits at Craig, CO, on July 26, 1977.

DRGW 5353 at Bond, CO with train #742, July 26, 1977

KCS 4604 is the rear DPU on a southbound BNSF coal load, on a stormy day just prior to sunset. Palmer Lake, CO, July 23, 2019

DRGW 5771 at Denver's Union Station, Mar 26, 1983.

DRGW 5771 leads the Rio Grande Zypher westbound at Plainview, CO, just before Tunnel 1. Mar 26, 1983. Sadly, this entire area is slated for development in 2019 or 2020.

DRGW 5771 leads the westbound Rio Grande Zephyr on a snow day, Mar 26, 1983. Clay, CO.

DRGW 5771 awaits to leave Denver's Union Station on a snowy day on Mar 26, 1983. The Ski Train also is in the picture awaiting its departure.