UP 2010 (ES44AC) leads a rare coal train down into Little Ten Curve at Rocky, Colorado.

On June 9, 2013, ample springtime rainfall has brought out wildflowers among green grasses on Colorado’s front range mountains, as an eastbound Union Pacific coal load slowly drops downgrade and... (more)

I spy, with the branch's eye, the California Zephyr cruising by. Snow and fog greet the riders of the CZ 6 train that is nearly 14 hours late getting to Denver due to a broken rail in Utah.

BNSF ACe 8570 gets an assist from a Norfolk Southern engine as it muscles a freight through Rocky, Colorado on the Moffat Tunnel Sub.

The California Zephyr runs past the wind break at Big Ten Curve which is made of ballast-filled hoppers welded to the tracks.

UP 2010 (ES44AC) runs through Little Ten Curve and will soon leave the Rocky siding area on its way to Denver, Colorado.

UP 2010 (ES44AC) runs past the signals at Rocky on its way to Denver, Colorado. It will soon meet the California Zephyr at Leyden for continuing on.

UP 2010 (ES44AC) runs through Big Ten Curve and will soon drop down the hill further into Little Ten Curve as it heads to Denver, Colorado.

The California Zephyr has left Denver, Colorado and enters the cut east of Rocky as it heads towards the Rocky Mountains.

UP 6675 (AC4400CW) has just transitioned through Big and Little Ten Curves and is now leaving Rocky, Colorado as it heads to Denver.

The California Zephyr 5 train runs through the cut leading to Rocky, Colorado as it heads towards the Moffat Tunnel district.

The California Zephyr 5 train rounds the corner at the base of Big Ten Curve and will begin the climb up the Moffat Tunnel Sub towards the Continental Divide.

The California Zephyr climbs through Big Ten Curve at Rocky, Colorado as it begins the journey up the Moffat Tunnel Sub.

UP 8330 (SD70ACe) leads a coal through Rocky, Colorado.

An eastbound Union Pacific coal load led by GE AC4400CW No. 7086 is in the siding at Rocky, Colorado, while above, UP’s West local traverses Rocky Spur on January 27, 1998. Power for the local i... (more)