The sun does not get much lower than this as the last few minutes of direct sun illuminates UP 7489 (AC45CCTE) as it runs light out of the UP's Cheyenne Yard.

A winter wonderland greets riders of the California Zephyr as AMTK 189 (P42DC) leads the train around Big Ten Curve, which will drop the train 2% along the 280 degree curve.

The morning California Zephyr gets ready to pass a waiting BNSF oil can train which has pulled off onto a siding just after the Big Ten Curve to let the Zephyr pass.

BNSF 5954 (ES44AC) leads a coal train over the Santa Fe bridge in the town of Larkspur.

Denver Rock Island Railroad's 1606 (GP7) can be found working the industrial area in Denver between Colorado Blvd and Quebec Street along the I-70 corridor.

UP 1350 (ex Denver & Rio Grande Western GP40-2) waits in the UP's North Yard in Denver for its turn to shuffle freight cars.

BNSF 1579 (SD40-2) takes a freight to the BNSF yard in Golden, Colorado.

One last turn and the California Zephyr will be out of the Colorado Rocky Mountains and heading to Arvada, on its way to Denver's Union Station.

The California Zephyr, lead by Amtrak 189 (P42DC), kicks up the snow as it makes its way out of the Colorado Rocky Mountains. The heavy spring snowstorm will likely be the last one as spring is a... (more)

The California Zephyr made a quick stop in the Union Pacific's North Yard to pick up a drift buster and extra muscle as they headed into the Colorado Rocky Mountains during a heavy spring snowstor... (more)

The immense size of UP 4014 is evident as the crew tends to the myriad of valves, rods and pistons.

UP Big Boy 4014 rounds the bend with a windmill farm visible in the background. The persons on the hill off to the right were flying a drone, following the engine through the open lands west of C... (more)

The UP yard in Cheyenne never disappoints if you like trains with lots of power. It is not uncommon to see 5 and 6 engine lash-ups pulling long double stack trains.

The Swan Ranch Railroad operates a number of engines in an industrial area south of Cheyenne Wyoming. Their attractive black and yellow paint schemes are certainly not hard to miss.

UP 4014 and 844 climb the steep grade that will take them to Harriman where they will stop to grease up the engines.