An RTD-Denver A Line train, with Silverliner V 4035 leading, arrives at the city’s 61st & Peña Station, not far from the Denver International Airport. These electric trains connect DIA with Un... (more)

RTD of Denver's commuter train #4009 (Hyundai Eagle P3) kisses the sunrise as it heads from Arvada, Colorado to Denver.

RTD commuter rail train #4011 (Hyundai Eagle P3) heads towards Arvada, Colorado.

RTD commuter rail train #4029 (Hyundai Eagle P3) drops down from the elevated section as it heads to Denver's Union Station.

RTD commuter train #4128 (Hyundai Eagle P3) takes the elevated track over the California Zephyr, which is arriving at the Denver Yard prior to backing into Denver Union Station.

RTD commuter train #4022 (Hyundai Eagle P3) heads towards Denver International Airport.

RTD commuter train 4028 (Hyundai Eagle P3) heads towards Denver International Airport as a United Airlines plane takes off.

Two Denver RTD commuter trains pass each other at Denver International Airport.

RTD commuter train #4012 (Hyundai Eagle P3) heads towards Denver International Airport on the A-Line.

Planes, Trains, and Automobiles. The RTD Commuter Rail A-Line "Train to the Plane" runs towards the terminal at Denver International Airport just as a United Airline Boeing 737 takes ... (more)

Heavy snow falls at Denver's Union Station as RTD 4001 (Hyundai Eagle P3) uses power from the catenaries to move through the yard.

RTD 4034 (Hyundai Eagle P3) leaves Denver Union Station behind and will run on the A-Line to Denver International Airport.

A spectacular sunrise provides the background for RTD commuter train #4023 (Huyndai Eagle P3) as it runs the elevated section over the Union Pacific's 36 Street Yard in Denver, Colorado.

Snow is falling at Denver's Union Station as RTD commuter train #4002 (Hyundai Eagle P3) passes the Winter Park Express Ski Train and heads for Arvada, Colorado.

RTD 4037 (Hyundai Eagle P3) commuter rail train arrives from Denver International Airport as it drops down from the elevated track north of Denver's Union Station.