Mount Is Caravius is the highest elevation in the Sulcis-Gutturu Mannu massif. Information regarding its height is disputed: historical bibliographical sources and official documentation attribute it a height of 1116 meters.
It is located on the southwestern border of the WWF Monte Arcosu Reserve and is visible from the north (Cixerri plain, middle Campidano plain and Iglesiente mountains). The summit marks the border between the municipal territories of Siliqua, Nuxis, and Assemini (administrative island).