First Known Drawing of GM's Milford Proving Ground
© General Motors
The first known illustration of the General Motors Proving Ground in Milford, Michigan, on display at the General Motors Heritage Center, in Sterling Heights, Michigan.
GM's Milford Proving Ground has changed a lot since this illustration was drawn. Today, the proving ground is made up of four lakes and 130 buildings on 4,000 acres. Nearly 5,000 people are employed at the Milford Proving Ground.
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