Caddo Mills Municipal Airport
The airfield was built during World War II as an auxiliary training field[5] for the United States Army Air Forces.[5] After the transfer of ownership, few aircraft used the airfield, and its disused runways became a popular site for races held by Dallas-area auto clubs.[7] In July 1952, the Sports Car Club of America scheduled two 50 mi (80 km) road races at the airfield,[8] and the NHRA held its regional drag championships at the site in June 1956.[5] In 2000, Armadillo Aerospace used the airport as a testing base for their experimental reusable rocket-powered lunar landing module.The airport's simultaneous remote location and close proximity to the Dallas–Fort Worth metroplex were major factors in the company's decision to conduct experiments there.