Bicycle Lake Army Air Field — Fort Irwin/Barstow, United States

Bicycle Lake Army Air Field is a U.S. Army airfield located on Fort Irwin, home to the Army's National Training Center in the Mojave Desert near Barstow, California. Two runways sit at 2,350 feet of elevation, supporting military training exercises rather than civilian air travel. Coded BYS, the airfield moves troops, equipment, and supplies tied to the large-scale training rotations that units complete at Fort Irwin before deployment. The surrounding Mojave Desert provides the vast, open terrain the National Training Center relies on for realistic exercises. As a restricted military installation, BYS offers no commercial or general aviation access, setting it apart from typical civilian airfields in this part of California.