The Denver Rock Island Railroad operates a nice variety of older switchers, including DRIR #88 which is a GP9.

A crewman throws a switch for the Denver Rock Island Railroad's GP9 that is working the Stockyards area of north Denver.

The California Zephyr 6 train is 14 hours late getting to Denver, which meant being able to catch in daylight running through the Union Pacific's North Yard. Usually, the CZ6 would get to Denver ... (more)

No lights and no glass panes: diesel loc at the Colorado Railroad Museum in Golden.

Beautiful oldie at the Colorado Railroad Museum in Golden.

Saddle up! The engineer for the Winter Park Express Ski Train climbs into the cab of engine #84 (P42DC) at Denver's Union Station and gets ready to move the train.

BNSF 8460 (SD70ACe) pulls into the Denver Yard with snow on its face from a heavy snowfall along the Colorado Front Range.

BNSF ACe 8774 leads a freight around the curve of the North Yard in Denver, Colorado.

A crewman throws the switch for the Denver Rock Island Railroad's 553 (SW8) as it moves cars in north Denver.

The Denver Rock Island Railroad's 1083 (SW1500) works a cut of cars in an industrial area known as The Stockyards in Denver. Colorado.

Snow if falling as UP 6463 (AC4400CW) sits in the Union Pacific's North Yard in Denver, Colorado with a long military train full of M1 Abrams battle tanks and M3 Bradley fighting vehicles.

Morning Light Under 20th Golden morning light punch in between the glass and concrete canyons of LoDo Denver putting the spotlight on a cold snow plastered urban landscape.

A few notable visitors to the Denver BNSF pumpkin patch for servicing include a SD70MAC Greinstein, a Dash-9 Warbonnet, and a Ferromex engine.

UP 1640 (SD40N) works a cut of cars in the Union Pacific's North Yard in Denver, Colorado.

BNSF Ace 8774 runs through the North Yard on the way to the Moffat Tunnel Sub.