DIXIE HIGHWAY, an American thoroughfare extending from Lake Michigan and Lake Huron to Tallahassee, Jackson ville and Miami, Fla. A branch running through Nashville, Tenn., is called the "Dixie B Line." Paved or improved throughout, it has a length of 3,989 m., 1,930 m. in its western and 2,169 m. in its eastern division. The Dixie highway represents one of the earliest attempts in the United States at modern long distance road improvement and comprises in its course the scenic charm of the Great Lakes, the Appalachian mountains and the shores of the Gulf of Mexico and the Atlantic ocean.