BNSF SD70ACe no. 8434 leads a BNSF AC4400CW on this empty coal train north just outside of Berthoud, CO. The train is headed back to the Powder River Basin in Wyoming for more low sulfur coal.

An ex Santa Fe C44-9W no. 695 and Canadian National C40-8M no. 2436 are on the point of this Fort Collins, CO to Ferguson, TX loaded windmill blade train. They are waiting for a new track warrant ... (more)

The sun has set behind the mountains as this Fort Collins, CO to Ferguson, TX loaded windmill train pulls up to MP 34 where they'll wait for the Buck Local to clear up in Boulder.

It's a gorgeous afternoon as Norfolk Southern no. 7630 leads Norfolk Southern "Southern Heritage" no. 8099, and BNSF no. 4056 on BNSF's Laurel, MT to Denver, CO manifest at Boulder, CO.

An SD60M, two SD40-2's, ES44C4, SD60, and C44-9W in numerous paint schemes lead the Longmont Switch back south to Longmont out of Berthoud after picking up cars and some extra luggage at North Yar... (more)

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.

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.

With the temperature at about 3 degrees and the windchill at about -10, the snow continues to fall as Canadian Pacific AC4400CW no. 8645 leads BNSF C44-9W no. 970 on the Omaha, NE to Tacoma, WA st... (more)

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.

A three hour late Amtrak #5 races up the grade through the canyon along South Boulder Creek between Rollinsville and Tolland. Passengers over the past week have been treated to spectacular fall co... (more)

A BNSF crew member gives the engineer hand signals before making the joint with a set of empty BNSF covered hoppers that were filled with barley at the Coors Elevator in Highland, CO.

While waiting for a train to depart, sometimes you find something to photograph with interesting lighting on it.

After meeting a northbound empty coal train, the Buck Local led by two B40-8Ws leave the city of Boulder, CO as they trundle along with boxcars, centerbeams, and a caboose.

The second of three northbound coal empties led by two SD70ACes heads north into Boulder, CO through Legion Park on a sunny Wednesday afternoon.

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