What is Mesa Proving Grounds?
Mesa Proving Grounds is a 3,200-acre parcel that was purchased from General Motors in 2006. Mesa Proving Grounds is part of the 5,000-acre General Motors (GM) Proving Grounds, which has operated since 1953 to test vehicles in a hot vehicle weather atmosphere. The property is within the Williams Gateway area, which includes Phoenix-Mesa Gateway Airport, ASU Polytechnic Campus and nearby commercial and residential properties.