Alto del Naranco
Alto del Naranco is a mountain pass at an elevation of 634m (2,080ft) above the sea level, located in the Principality of Asturias in northern Spain. It’s an iconic climb in the country.
The road to the summit is asphalted but pretty narrow and steep. It’s a 6.6 kilometres climb at 6.1%. The steepest section goes up at 8.9%. Alto del Naranco is a familiar name in the Vuelta. Located near Oviedo, the climb is featured in the race since 1974.