Milestones Icon: Air-traffic control

The Denver Air Route Traffic Control Center in Longmont is probably the most important building you have never heard of.

If you ever wondered how airplanes manage to avoid running into each other – one of the big reasons is the air-traffic control center and its employees in Longmont.

Air-traffic controllers staff the building along 17th Avenue  around the clock – using radar to monitor the progress of flights in nine states. They tell pilots when to perform course adjustments to maintain separation from other aircraft.

When pilots in Colorado want to change altitude or make any other course changes to avoid turbulence…