Amtrak train No. 6 is about to overtake an eastbound UP loaded coal train in the siding at Rocky where he'll tie down as Denver has no room for them.

With BNSF experiencing a shortage of power, they leased a lot of ES44ACs from CitiRail, an engine leasing company. You can see such a unit second out, behind a very good looking Warbonnet on this ... (more)

The BNSF 294 lets out some smoke as it works in tandem with two GE models while climbing the grade up to the famous Big 10 Loops just 18 miles west of Denver.

Heading around the Big Ten Curve and dropping towards Rocky siding, this loaded Oil train will soon be arriving in Denver.

On May 05, 2014, three brand new BNSF SD70ACes lead this loaded coal train down Big Ten Curve west of Denver. The train is about to enter the west end of Rocky Siding.

With the city of Denver and the suburbs in the background, BNSF's Provo, UT to Denver, CO manifest train eases down the grade at Big Ten Curve on the approach to the siding at Rocky.

There is about 5 minutes of sunlight left as the CEFX trio pulls a short freight through the shadows of the Arvada neighborhood.

It's just after sunset with temperatures close to zero as Amtrak train no. 6, the California Zephyr, wastes no time descending the grade at Coal Creek Canyon during the cold blue hour.

Having conquered the Big 10 Loops, this BNSF freight train is about to cross the Blue Mountain Road as it continues the strenuous climb out of Denver and into the Rockies.

Heading through light snow flurries and with a temperature of 1 degree outside, the M-K-T Heritage engine approaches Denver leading this Eastbound manifest train.

With the temperature close to zero, Amtrak train no. 6, the California Zephyr descends the grade at Big Ten Curve with the Denver Metro area in the background.

It's just after sunset as Amtrak #6 eases down the grade around Big Ten Curve at dusk with the Denver Metro Area in the background.

Three of the BNSF’s paint schemes are seen on three different types of locomotive models as a trackage rights train heads west along the UP Moffat Tunnel subdivision.

A late Amtrak #5 led by a UP AC4400CW rounds the curve from Eisile towards Coal Creek Canyon west of Denver.

The Denver-Roper manifest grinds upgrade at Tunnel One in Coal Creek Canyon. The steep 2% grade here is evident as the train heavy with Pueblo steel products blasts towards the first Tunnel on t... (more)