YUCCA,ARIZONA : A Ford F-150 Triton Pick up truck drives on the High Speed Track at the Ford Arizona Proving Grounds. The high speed track offers optimum surface conditions for performance testing, fuel economy testing, acceleration, and braking. The Arizona Proving Ground is located in Yucca, Arizona on 3,840 acres of primarily level terrain. Included in the proving ground are over 50 miles of test roads and approximately 109,000 square feet of building area. APG conducts a variety of durability, performance, and special test procedures. Yucca, Arizona.