So, to keep the testing and fresh ideas flowing, another Proving Grounds location opened in 1990 around Tucson in Green Valley, Arizona. At face value, this 6,500-acre site operates similarly to ...

Yuma is the largest city in Arizona outside the metro areas of Phoenix and Tucson. Yuma proving ground (YPG) is part of the U.S. Army Test and Evaluation Command and is a multiple purpose test ...

Stellantis will close its Arizona Proving Grounds this year as it works to sell the property. It was one of numerous facilities, including the Auburn Hills headquarters and technology center ...

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