RTD's commuter train #4056 leaves Denver Union Station and heads to Westminster, Colorado, a suburb north of Denver.

RTD 4003 rounds the corner to the Rino District station in Denver, which is the last stop on the A Line before arriving at Denver Union Station.

Denver RTD's commuter train #4057 runs past the 36th Street Yard, giving riders a great view of the large yard in central Denver.

RTD 4044 (Hyundai Eagle P3) will make a stop at Denver's downtown Union Station to pick up passengers and then will make the 25 minute journey to Denver International Airport.

Passengers board the "Train to the Plane" commuter rail which connects Denver's Union Station and Denver International Airport. The 124 year old downtown train station underwent a $54 million dol... (more)

Its the 'blue hour' on the RTD Commuter Rail line.

Smoke from numerous fires in the western states has settled over Denver, Colorado. While it makes for difficult breathing during the day it also makes for some amazing sunrise and sunset shots. ... (more)

An RTD train flies eastbound near the Denver airport.

RTD Commuter train 4056 arrives at Denver's Union Station at the same time as the California Zephyr.

RTD Commuter train 4026 heads to Denver International Airport.

Commuter train RTD 4066 gets the green light to enter Denver's Union Station to drop off passengers it collected from Denver International Airport.

Coming and going. A commuter train leaves Denver's Union Station for Westminster as another arrives from Denver International Airport. Steely eyed foamers will also notice the California Zephyr ... (more)

A commuter train prepares to head downtown from the Denver Airport

A commuter train prepares to leave Denver's magnificent station as Zephyr passengers board out of site.

Commuter train RTD 4024 makes a run on the B line between Denver's Union Station and Westminster, Colorado.