The plow interiors were shot by me for my production "Rotary Snowplow Through the Rockies". It was also later used in the Greg Scholl video mentioed above.
In "Rotary Snowplow Through the Rockies" we see the 1991 OY run, from lineside and on-board.
We also interview retired D&RGW railroaders George Kingery, Eldon Morgon, and John Norwood SENIOR (the father of the famous book author) who was an agent in the early days of the railroad.
Quite a bit to watch.
It's still only on VHS. I hope to gussy it up a bit and release it on DVD this next year if I can get to it.
Les Jarrett