U.S. Route 40
U.S. Route 40 is a federal highway from Park City, Utah to Atlantic City, New Jersey.  It is 2,286 miles long and passes through twelve states.  It used to go from Park City to Reno, Nevada and San Francisco, California, but that route is now part of Interstate 80.  Much of the eastern part of U.S. Route 40, from Vandalia, Illinois to Cumberland, Maryland (or from St. Louis, Missouri to Baltimore) was part of the National Road.  This part has been around since 1839.  Part of U.S. Route 40 was also called the "Lincoln Highway".