One of my favorite places I’ve ever been to in Arizona is the Petrified Forest National Park, which is just off of historic Route 66. In 1857, the United States government hired E. F. Veale to build a wagon road from Fort Defiance, New Mexico to the Colorado River. Beale experimented with using a Camel Corps to build the road.
The Petrified Forest is part of a natural travel corridor that has been used for over 10,000 years, and modern humans travel a similar path.