The sunrise glints off the ribbons of steel as a BNSF ACe pulls an empty coal into the yard at Pueblo, Colorado.

Westbound empties waiting to proceed.

A westbound BNSF coal train rolls through the curves of the Big Horn Subdivision between Ulm and Verona, Wyoming, on June 14, 2014.

After meeting a southbound at Bonneville a northbound begins its journey through the Wind river Canyon

Passing the old water tank and grain elevators still located at Arvada, Wyoming, is a westbound BNSF coal train on BNSF’s Big Horn Subdivision on June 14, 2014.

The pavement of Wyoming Highway 336 glistens in the afternoon sun after the passing of a brief rain shower as a BNSF coal empty curves through the wye at the connection of the Dutch Subdivision to... (more)

It is nearly a full BNSF engine servicing yard with a few visitors in attendance.

Here is a panorama view of the BNSF engine servicing facility yard in Denver.

There are a number of visitors in the BNSF engine servicing facility, including a line of MOW vehicles, a couple CitiRail units, a KCS engine and two UP engines by the sand towers.

A westbound BNSF coal train curves through Arvada, Wyoming, over the Big Horn Subdivision on June 14, 2014.

Under dark, rainy skies, a BNSF coal empty is westbound at Dutch, Wyoming, on the afternoon of June 14, 2014.

A westbound BNSF coal empty rumbles through Dutch, Wyoming, as rain moves east over the Big Horn Subdivision on June 14, 2014. In a mile or so, the train will head up the Dutch Sub. for loading.

BNSF Railway SD70ACe No. 9092, with We Energies empties in tow, climbs under a rainbow on the railroad's Big Horn Sub in Wyoming.

In the last light of the day, C WTMLRT's lead engine is "set and centered" on the mainline while the conductor and brakeman are inbetween two cuts of cars at Westar's Lawrence Energy Center. C WTM... (more)