This is perhaps no better exemplified than by the famed yet secretive Caterpillar Peoria Proving Grounds, located in Washington, Illinois. Caterpillar's 2,500-acre Proving Grounds has acted as a ...

SEE MORE First Mode is establishing a proving grounds between Seattle and Portland to test and optimize giant zero-emission hauling trucks and the hydrogen-based infrastructure they’ll depend on.

A large part of southeast Mesa’s economic explosion has centered on the 5,000 acres that formerly served as the General Motors Desert Proving Grounds for over 50 years. GM used the land to test ...

Stellantis has announced the sale of its Arizona Proving Grounds as part of its ongoing cost-cutting measures. Located in Yucca, Arizona, the 4,000-acre site has been a testing ground for decades ...

"As agreed to during 2023 UAW negotiations, the Company is continuing to market the Arizona Proving Grounds for sale and therefore, will cease use of the facility by the end of the year." ...