Aneto occupies the eastern end of the Malditos Massif which primarily consists of a 6km long ridge, running from north-west to south east at over 3000m. The ridge connects Aneto towards the east with the more visible Maladeta peak, further to the west, and includes the Coronas peaks and Pico Maldito, which, together with the crest of the portillons, gives the massif its characteristic image.