Arén

Arén, in Catalan: Areny de Noguera , or in Aragonese: Arén de Noguera, is a municipality located in the province of Huesca, Aragon, Spain. According to the 2018 census (INE), the municipality has a population of 318 inhabitants.

Villages
These include uninhabited villages:
 * Former Arén municipality: Arén, Campamento de Arén, Sobrecastell, Berganuy, Claraválls, Puifel and Soliva.
 * Former Cornudella de Baliera municipality (merged in 1965): Rivera de Vall, San Martín, El Sas, Casa Consistorial, Puimolar, L'Hostalet, Vilaplana, Soperún, Iscles, Suerri and Tresserra.
 * Former Betesa municipality (merged in 1966): Betesa, Santa Eulalia, Los Molinos and Obís.

Trivia

 * The prehistoric crocodilian Arenysuchus was named after the municipality.
 * The duck billed dinosaur Arenysaurus was also named for this place.