The municipality includes the localities of Argestues, Bellpui, Berén, Biscarbó, Castellás, Castells, Espaén, Guardia de Arés, Junyent, Miravall, Novés de Segre, Tahus, and Trejuvell.

The parish church of Guardia de Arés is dedicated to Saint Stephen and is also Romanesque, dating back to the 12th century.

It has a single nave with a barrel vault roof and two later-added side chapels.

The main economic activity is livestock farming, with very few areas dedicated to agriculture.

Located in Catalonia, Spain, Les Valls d'Aguilar offers a wide range of attractions and experiences, making it a destination worth visiting.