Abra del Acay
The Abra del Acay in La Poma Departament, Salta Province, Argentina is the highest point in Argentina's National Route 40. Located at 24°23′S 66°14′W / 24.383°S 66.233°WCoordinates: 24°23′S 66°14′W / 24.383°S 66.233°W, its altitude is 4,972 meters (16,312 ft), even though an old sign informs visitors it stands at 4,895 meters (16,060 ft).
Inaugurated on 8 July 1960 after three years of construction, this unpaved part of the National Route 40 is only suitable for all-terrain vehicles, with the exception of some months in the year when meteorological and maintenance conditions allow normal vehicles to transit. The road inclination of 4.5% and oxygen deprivation due to altitude make the crossing difficult for both vehicles and people.
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- "ABRA EL ACAY". Retrieved 13 October 2011.