Denver International Airport (DEN) is the fifth-busiest domestic U.S. airport and twentieth busiest airport in the world by passenger traffic.
DEN handles by far the largest volume of commercial air traffic in Colorado, and is the busiest U.S. hub airport between Chicago and the Pacific coast, making Denver the most important airport for connecting passenger traffic in the western United States.
Other commercial airports in Colorado include:
- Aspen ASE Aspen-Pitkin County Airport
- Colorado Springs COS City of Colorado Springs Municipal Airport
- Durango DRO Durango-La Plata County Airport
- Eagle EGE Eagle County Regional Airport
- Grand Junction GJT Grand Junction Regional Airport
- Gunnison GUC Gunnison-Crested Butte Regional Airport
- Hayden HDN Yampa Valley Airport
- Montrose MTJ Montrose Regional Airport
- Alamosa ALS San Luis Valley Regional Airport (Bergman Field)
- Cortez CEZ Cortez Municipal Airport
- Pueblo PUB Pueblo Memorial Airport
- Telluride TEX Telluride Regional Airport
Extensive public transportation bus services are offered both intra-city and inter-city—including the Denver metro area’s extensive RTD services.
The Regional Transportation District (RTD) operates the popular RTD Bus & Rail transit system in the Denver Metropolitan Area. As of January 2013 the RTD rail system had 170 light-rail vehicles, serving 47 miles of track.
Amtrak operates two passenger rail lines in Colorado, the California Zephyr and Southwest Chief.
Flag of Colorado:
The flag of the state of Colorado consists of three horizontal stripes of equal width; the top and bottom stripes are blue, and the middle stripe white. On top of these stripes sits a circular red “C”, filled with a golden disk. The blue is meant to represent the skies, the gold stands for the gold rush in the late 19th century, the white represents the snowcapped mountains, and the red represents the ruddy earth.
The first Colorado flag in no way resembled today’s flag design.
The flag was designed by Andrew Carlisle Carson in 1911 and adopted by the Colorado General Assembly on June 5 of the same year. However, the legislature did not specify the size of the “C” or the exact shade of blue or red.
Thus, some flags were in slightly different colors and had the “C” wholly within the center stripe. On February 28, 1929, the General Assembly added to the description of the flag that the blue and red would be the same color as the flag of the United States. On March 31, 1964, the legislature further dictated the diameter of the gold disc to be equal to the center stripe.
State Nickname:
Colorado is nicknamed “The Centennial State” because it became the 38th state of the United States in 1876 one hundred years after the signing of the Declaration of Independence.