Castell de l'Airosa is a rocky mountain in the eastern side of the Ports de Tortosa-Beseit, Catalonia, Spain.

Its summit has an altitude of 953.8 metres above sea level.

[1] Castell de l'Airosa, is a spectacular looking mountain.

Its name includes the term castell —"castle" in Catalan— for the mountain looks very much like a castle when viewed from certain angles.

[2][3]