With the Flatiron rock formations above Boulder, Colorado, in the background, Union Pacific’s MRONY manifest freight from Salt Lake City to Denver drops downgrade at Eisele, Colorado, on the aft... (more)

BNSF 9091 heads the Provo to Denver manifest as it exits Coal Creek Canyon and is about to cross over Blue Mountain Drive as it finishes its journey towards Denver

South Boulder Creek in the Springtime

Hustling eastbound over the South Boulder Creek on a delightful heavy spring storm in the Rockies.

UP 6262 (a former Southern Pacific AC4400CW) runs through Coal Creek Canyon on the Moffat Tunnel Sub and heads towards the shadows of Blue Mountain.

Coal along the Colorado
An eastbound Union Pacific coal train follows the Colorado River toward Red Gorge between Yarmony and Radium, Colorado, on November 1, 2012.

The California Zephyr #6 train exits Tunnel 1 as it gets ready to drop into Coal Creek Canyon, Colorado.

BNSF 5807 (ES44AC) leads a CSX and a freight through Coal Creek Canyon, Colorado.

Union Pacific’s Denver to Salt Lake City manifest freight MNYRO climbs through a snowy Big 10 Curve between Rocky and Clay, Colorado, on February 2, 2014. Four GE AC4400CWs on the point of the f... (more)

The California Zephyr's morning #5 train out of Denver runs towards Big Ten Curve as it heads into the foothills of the Colorado Rocky Mountains. It will climb in elevation and double back on the... (more)

Amtrak engine 69 leads the California Zephyr through Little Ten Curve and will soon enter Big Ten Curve as it gains elevation climbing into the foothills of the Colorado Rocky Mountains.

Blue Mountain Magic

Spring thunderstorms batter the high plains with a characteristic clearing along the Flatiron Range near Coal Creek.

Amtrak engine 23 (P42DC) leads the California Zephyr #6 out of Tunnel 29 during an intense snow storm and continues its decent down the Colorado Rocky Mountains while heading to Denver.

Threading Through the Gold

Fall color glows in the valley at Tolland which plays host to an empty coal bucket moving west swiftly towards the Great Divide.

In the Gun Barrel

BNSF 8383 is down grade at east Tolland under the Giants Ladder of the original Rollins Pass line with heavy sand for the robust fracking business along... (more)

The arrival of the evening's #6 California Zephyr in the Colorado Rocky Mountains coincided with the beginning of a strong winter snow storm. Here Amtrak engine 23 (P42DC) runs through heavy snow... (more)