High Quality Content by WIKIPEDIA articles! U.S. Route 67 is a 1,560 mile (2,511 km) long north–south U.S. highway in the Central United States. The southern terminus of the route is at the United States-Mexico border in Presidio, Texas, where it continues south as Mexican Federal Highway 16 upon crossing the Rio Grande. The northern terminus is at U.S. Route 52 in Sabula, Iowa.