article: United States Numbered Highways
links: Interstate Highway System U.S. Route 400 Van Horn, Texas Jacksonville Beach, Florida Los Angeles, California U.S. Route 101 U.S. Route 66 United States U.S. Route 425 Olympia, Washington Boston, Massachusetts Fort Kent, Maine Newport, Oregon U.S. Route 2 American Association of State Highway and Transportation Officials Federal Highway Administration U.S. Route 1 Key West, Florida PDF