Rick:
I do not monitor the UP traffic, so do not know what is going on these days. I have asked folks out in Glenwood, but only report I had was that the UP was using a ballast regulator. Out in Helper, Utah, they used a front end loader on rails. The UP has ex-D&RGW Jordan Spreaders AX45 at Phippsburg and AX41 in Denver. They also have ex-D&RGW Russell Snow Plow X67 at Glenwood Springs. I don't think they have used X67 in years, but they used AX41 on the line to Kansas last year and I heard that they have used AX45 out of Phippsburg.
Some retired D&RGW folks think the UP will regret getting rid of so much of the D&RGW snow fighting equipment.
Jerry Day