Ruta 40
Argentina Ruta 40 stretches along the length of Argentina from Cabo Virgenes in the south to La Quiaca in the north, extending more than 3,045 miles. It runs parallel to the Andes, crossing 236 bridges and countless rivers, lakes, national parks, and mountain passes. From sea level, it ascends to 16,404 feet in the north around Salta—for many, the journey’s most dramatic leg. Planning: Ruta 40 is largely paved but the southern part crosses mostly barren terrain. www.turismo.gov.ar