Alt Pirineu i Aran is one of the seven vegueries defined by the Regional Plan of Catalonia. It is located in the Catalan High Pyrenees.
It is formed by six comarques: Alt Urgell, Alta Ribagorça, Baixa Cerdanya, Pallars Jussà, Pallars Sobirà and Val d'Aran. Val d'Aran has an autonomous government called Conselh Generau d'Aran.
The veguerie of Alt Pirineu i Aran is the largest territory, with 18% of Catalonia's total surface area, but the one with the least population, with a density of 12.2 inhabitants/km2.
Wikipedia https://en.wikipedia.org/wiki/Alt_Pirineu_i_Aran
Coordinates 42°21'27.26" N 1°27'21.624" E