UP 7833 (ES44AC) splits the trees as it runs towards Arvada, Colorado on the Moffat Tunnel Sub.

Ontime (altered schedule) California Zephyr has just negotiated the Big 10 Curves and heads toward the huge horseshoe at the mouth of Coal Creek Canyon.

Moffat Cement MGJNY 3/15/24 Better than 5 feet of snow fell under the Great Divide along the Moffat Road in this storm. The morning investment started trackside for the GJ crawling f... (more)

Amtrak's California Zephyr passes by a Union Pacific Oil train that is stopped on the Plain siding on Union Pacific's Moffatt Tunnel subdivision. The Zephyr is headed eastbound and in a few minute... (more)

Amtrak's Winter Park Express Ski Train kicks up the snow as it runs through Arvada, Colorado on the Moffat Tunnel Sub.

A Union Pacific oil train heads east, descending the front face of the Flatirons and down to Denver and the flat plains that stretch eastward. The mid-train DPU's come into view, showing how quic... (more)

The Colorado Rocky Mountains loom large above UP 2698 (AC4400CW) as it leads an oil train towards Arvada, Colorado on the Moffat Tunnel Sub.

Wrap Around Photo. Union Pacific Railroad 2528 (ES44AC-H/C45AH) leads a robust six-pack of power through Coal Creek Canyon approaching Blue Mountain Drive in Aravada, Colorado on July 28, 2... (more)

Amtrak heritage engine #160 (P42DC) leads the California Zephyr through Arvada, Colorado.

The California Zephyr runs towards Leyden from Arvada, Colorado as it heads west from Denver.

The California Zephyr has left Denver, Colorado and runs through Arvada on the Moffat Tunnel Sub.

A frosty-chinned BNSF 5700 (ES44AC) leads a freight through Arvada, Colorado on the Moffat Tunnel Sub.

Amtrak's Winter Park Express Ski Train whips up the snow as it runs through Arvada, Colorado. It will take two hours to reach the large ski resort on the opposite side of the Moffat Tunnel.

BIG TEN Amtrak 6 the California Zephyr descends the Rocky Mountains through Big Ten, Little Ten in Arena, and then Rocky and beyond to Leyden in this 753-second = 12.55 minute exposure... (more)

Big 10 curve surrounded by the foothills and Rocky Mountains in the distance shows the great climb the California Zephyr has ahead.