Itinerary from Ruta RN 52 (Salinas Grandes) to San Antonio de los Cobres, then accros the Abra El Acay, until Cachi.
The Abra el Acay is the world’s highest point over a National Route (the famous Argentinean “Ruta 40”). Its altitude measured by GPS is between 4966 and 5061 meters, even though an old sign informs it stands at 4959m.
