The Quebrada de Humahuaca is a narrow mountain valley located in the province of Jujuy in northwest Argentina, 1,649 km (1,025 mi) north of Buenos Aires (23°11′59″S 65°20′56″W / 23.19972°S 65.34889°W). It is about 155 km (96 mi) long, oriented north–south, bordered by the Altiplano in the west and north, by the Sub-Andean hills in the east, and by the warm valleys (Valles Templados) in the south. The Quebrada de Humahuaca was designated a protected landscape in 2000. It was made a UNESCO World Heritage Site on 2 July 2003. * Pucará de Tilcara * Hornocal * Cerro de los Siete Colores, Purmamarca