Since its invention, the “Caterpillar” tractor has played a key role in the industrial development of the United States. From the turn of the century to Neil Armstrong’s first step on the lunar surface, “Tracks Across America” traces the evolution of both a machine and the company that built it. Written by a retired Caterpillar Inc. engineer and a Peoria-area journalist, the book celebrates the 100th anniversary of the company and the unique heritage of an iconic American product through t...