A hundred and fifty-five kilometres of narrow mountain valley running north to south through Jujuy, and it has been a road for at least 10,000 years, since the first hunter-gatherers came through. The Inca made it a caravan route in the fifteenth century, the Spanish used the same line to move silver and men, and the agricultural terraces cut into the sides, some over 1,500 years old, are still being farmed. The Pucárá de Tilcara is a pre-Inca fortress rebuilt on the hill above the valley floor. At Purmamarca the Cerro de los Siete Colores lays out seven bands of colour in one hillside, each a different sedimentary layer tilted up on edge, and Hornocal further north does it in more. Protected from 2000, UNESCO listed 2 July 2003. About 1,649 km north of Buenos Aires.
Jujuy Province, Argentina
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