For many years my favorite passenger train-- possibly still is, for that matter-- was the Rio Grande Zephyr. Nearly all my early modeling efforts were directed at recreating it in HO, with mixed but ever-improving success. Now, with the arrival of the excellent cars from BLI (and the addition of a NKP combine kit), and with some detailed F9's from Stewart, I finally have a respectable version of the famous streamliner.
The real train, protected with only a single set of cars and locomotives, operated on an every-other-day cycle. Each Monday, Thursday, and Saturday morning, one could catch it westbound out of Denver. The following days it would depart Salt Lake in the morning and arrive on the Front Range at or after dark.
Below we have a short railfan essay of the westbound version (Train No. 17) as it might have appeared one day in early 1981. I've thrown in a couple of freight trains for flavor.
Within two years the Rio Grande Zephyr operation would be forever annulled, replaced by Amtrak. Its short 12-year life was a thing to remember, though. It's satisfying to finally have it modeled in HO.
(For reference, here is the track plan.)