Vielha e Mijaran is a municipality in the comarca of the Val d'Aran in Catalonia, Spain. It was created in 1970 by the merger of the municipalities of Arros e Vila, Betlan, Escunhau, Gausac, Vielha and Vilac: the former municipalities retain some privileges as "decentralised municipal entities" (entitats municipals descentralitzades, EMD), as does the village of Betren. Mijaran literally means "Middle Valley" in Aranese, as the inhabited part of the municipality is situated in the valley of the Garonne (Garona). The Noguera Ribagorcana has its source on the territory of the municipality, on the opposite side of the watershed. The ajuntament (town hall) is in Vielha, spelled Viella in Catalan and Spanish, which is also the capital of the comarca.