China Lake NAWS (Armitage Field), designated KNID, is a military airfield located within the Naval Air Weapons Station China Lake in the Mojave Desert of California. The installation is the U.S. Navy's largest land holding and serves as a premier test and evaluation facility for weapons systems, aircraft, and related technologies. Armitage Field supports flight operations integral to the testing and development of naval aviation weapons and systems. Access to the airfield is restricted to military and authorized personnel, and it does not serve commercial passenger traffic. The station covers approximately 1.1 million acres in the Kern and San Bernardino Counties of California, making it a critical and expansive facility for U.S. defense research and development.