Dawn's first light catches BNSF 3794 (ET44C4) with two track measuring cars as they wait for orders to head to Denver from the BNSF yard in Cheyenne, Wyoming.

Two stack trains meet east of Cheyenne, Wyoming, The single motor is leading a train into Cheyenne as the four engine train heads west towards the mountains.

UP 6544 (AC4400CW) leads a stack train out of the Cheyenne Yard at dawn.

BNSF 3794 ES44C4 7-16-2021 1600

BNSF 6776 (ES44C4) leads a stack train that has come from Denver into the BNSF yard in Cheyenne, Wyoming.

UP 4014 (4-8-8-4) looks like its back in the 1950's as it heads back to the large yard in Cheyenne, Wyoming.

UP 7608 (AC45CCTE) passes under a bridge as it heads towards Cheyenne on Track 1.

The Union Pacific's 4014 Big Boy engine passes a group of sunflowers as it moves out of the yard in Cheyenne, Wyoming.

UP 7608 (ES44AC) leads a container train east towards Cheyenne, one of many such trains throughout the day moving merchandise.

Thanks to lucky timing a BNSF freight heading south to Denver passes over a Union Pacific westbound train leaving the Cheyenne Yard at dawn.

BNSF 6418 (ES44AC) passes over a double tunnel road in Cheyenne, Wyoming.

The Union Pacific's Big Boy 4014 will be making a test run from Cheyenne to Denver tomorrow in preparation for their big trip next month. Should be exciting to see her on the rails again.

UP 8456 (SD70ACe) brings a freight into the yard in Cheyenne, Wyoming.

The 25th anniversary sticker engine BNSF 6075 (ES44AC) crosses the historic Colorado & Southern bridge in downtown, Cheyenne, Wyoming.

25th anniversary edition BNSF 6075 (ES44AC) heads towards the BNSF yard in downtown Cheyenne, Wyoming.