A squadron of eight Marine MV-22B Osprey aircraft are training at Fort Carson and the Pinon Canyon Maneuver Site this month.
Fort Carson says about 200 Marines will accompany the Ospreys, which can take off and land like a helicopter but fly like an airplane.
The exercise runs through Sept. 24. It's designed to test the squadron's ability to operate in an unfamiliar environment. The squadron is based at Marine Corps Air Station New River, N.C.
Fort Carson is an infantry post outside Colorado Springs. The Pinon Canyon site is in southeastern Colorado.