Cheyenne Regional Jerry Olson Field — Cheyenne, United States

Cheyenne Regional Jerry Olson Field, identified by the code CYS, sits at one of the higher elevations among American airports, a legacy tied to Wyoming's capital city perched on the high plains near the Rockies' eastern edge. In the 1920s, the field served as a critical stop on early transcontinental airmail and passenger routes, complete with a historic hangar still standing from that pioneering era of American aviation. Persistent wind remains a defining operational factor given Cheyenne's exposed high-plains setting, and the nearby presence of a major Air Force installation adds shared airspace complexity to a field that today handles general aviation and limited commercial service.