Located on the territory of the municipality of Arrens-Marsous in the Hautes-Pyrenees, Migouélou Lake is a natural lake in the Val d'Azun that takes place at over 2200 meters altitude. Located in the heart of the Pyrenees National Park, is accessible via marked hiking trails.
In the second half of the 1950s, the lake was raised of a new dam in concrete vaults to supply neighboring plants. On its banks, it is possible to enjoy the Migouélou refuge forty seats.
