BNSF 1625 (SD40-2) stares down BNSF 9709 (SD70MAC) which is occupying the same track, waiting for 1625 to back into a siding and drop off some box cars at a customer in Golden, Colorado.

Morning's first light catches BNSF 8473 (SD70ACe) shoving a loaded coal through Keenesburg, Colorado.

BNSF 6231 (ES44AC) leads a loaded coal train into Keenesburg, Colorado in freezing temperatures, passing through the freshly fallen snow from the previous night's storm

As storm clouds build in the background, late afternoon sun shines on BNSF 4120 (Dash9) as it leads a windmill tower train through the S curves east of Sedalia, Colorado. Notice the Magpie that is... (more)

The Royal George Railroad's beautifully maintained F7A and B units lead the train past the roaring rapids of the Arkansas River in Canyon City, Colorado.

A March snow storm has brought freezing temperatures to the Joint Line as BNSF 5902 (Dash9) leads an intermodal through Palmer Lake, Colorado.

BNSF 6952 (ES44C4) leads a GEO train through Sedalia, Colorado on the Joint Line.

Executive MAC BNSF 9709 passes through a snow-coated forest of trees after a night of heavy snow in Golden, Colorado.

A winter wonderland was on display as the California Zephyr ran through Plainview, Colorado on its way to the Moffat Tunnel.

A spring storm has coated the Colorado Front Range with a fresh layer of snow, no doubt delighting the passengers and crew on the California Zephyr that timed their trip just right for the winter ... (more)

After leaving Denver in the morning, the California Zephyr #5 runs along the foothills of the Colorado Rocky Mountains and will soon pass through 29 tunnels.

The temperatures are well below freezing as the California Zephyr runs through Keenesburg, Colorado, whipping up the freshly fallen snow into a blizzard behind the fast moving train.

BNSF 9272 (SD70ACe) leads a heavy coal train through Sedalia, Colorado as it travels southbound on the Joint Line.

BNSF 4173 (Dash9) leads a military train through the snow as it leaves Fort Morgan and heads to Denver, Colorado.

BNSF 9709 (SD70MAC) gets ready to cross West 44th Avenue as it leaves the BNSF yard in Golden, Colorado and heads to Denver.