After meeting the westbound California Zephyr up at Crescent Siding, FXE 4691 emerges out of Tunnel One and starts the descent into Coal Creek Canyon on December 30th, 2017.

In the afternoon sunlight just east of Cliff Siding, Ferromex ES44AC #4691 leads a colorful consist on the BNSF Provo, UT to Denver, CO manifest on December 30th, 2017.

In the warm early afternoon sunlight, BNSF's Provo, UT to Denver, CO manifest snakes around the horseshoe curve in Coal Creek Canyon, CO with quite the colorful consist leading the train.