The last few minutes of sunlight catch UP 3015 (SD70AH-T4) as it waits for a green signal to run through Arvada, Colorado on the Moffat Tunnel Sub.

UP maintenance provide service to some of the 7 engines in the consist as UP 3015 (SD70AH-T4) waits to leads an empty coal train up the Moffat Tunnel Sub.

UP 3015 (SD70AH-T4) leads 7 other motors and a long coal train at Leyden, Colorado as it gets ready to climb the Moffat Tunnel Sub to the Continental Divide.

UP 3027 (SD70AH-T4) leads a string of 9 other UP engines as they pull a long freight past the Rocky siding on their way to Denver, Colorado.

After passing through the mountain snow storm (which can be seen in the background), the UP freight headed by 3027 (SD70AH-T4) leads 9 other power units including the heritage 'The Katy' through R... (more)

UP 3027 (SD70AH-T4) exists Tunnel 29 as it leads a freight through Pinecliffe on the Moffat Tunnel Sub. The 20 degree temperature, snow and high winds made for a cold day of rail fanning in the m... (more)

A fierce snow storm pounds the mountains around Pinecliffe, Colorado as UP 3027 (SD70AH-T4) exits Tunnel 29 and heads towards Denver.

With heavy traffic ahead, new SD70AH-T4 UP 3012 leads the MSCWC past the large Cemex plant at East Victorville located along BNSF's Cajon Subdivision near the old station site of Leon.