Yellowstone Trail Map

ID: 4610 ~ Source: Courtesy of the Wikimedia Foundation.
This file appears in: The Yellowstone Trail
This file appears in: The Yellowstone Trail

By Cory Carpenter
"Plymouth Rock to Puget Sound" was the motto of the Yellowstone Trail, America's first transcontinental highway, established in 1912. Interstate 90 was not the first road in the United States to…