the route, by now largely paved, has become a well-known adventure tourism journey, and there are plans to pave the whole road. RN40 is the longest route in Argentina and one of the longest in the world, more than 5,000 kilometres long. At its traditional southern end near the city of Río Gallegos, it starts at sea level. It then crosses 20 national parks, 18 major rivers, and 27 passes in the Andes. Route 40's highest point is 5,000m in Abra del Acay in Salta Province.
National Route 40, Leg: Perito Moreno To Rio Mayo, 127km. Also known as RN40 or "Ruta 40", is a route in western Argentina, stretching from Punta Loyola near Rio Gallegos in Santa Cruz Province in the south to La Quiaca in Jujuy Province in the north. The route parallels the Andes mountains. The southern part of