U.S. 14, or the Black and Yellow Trail, covers nearly 1,400 miles from Chicago to Yellowstone National Park in Wyoming.
In addition to Illinois and Wyoming, U.S. 14 passes through Wisconsin, Minnesota and South Dakota along its east-west path.
The nickname Black and Yellow Trail refers to the Black Hills of South Dakota and Yellowstone National Park, both of which two-lane highway travelers can visit by driving this road.