Es Sies Terçons d'Aran Historical milestone · Naut Aran, Val d'Aran, Lleida Image of Naut Aran, not of the place itself. The valley was organised into six terçons: Pujòlo, Arties e Garòs, Castièro, Marcatosa, Lairissa and Quate Lòcs. They grouped the towns and sent syndics to the Conselh Generau. The division survived until the nineteenth century and is still an Aranese territorial reference. siglo XIV Photo: Alberto-g-rovi (CC BY-SA 4.0) What to see and do in Naut Aran