Aneto Peak Nature · Benasque, La Ribagorza, Huesca The Aneto is the highest peak in the Pyrenees and the second-highest in the Iberian Peninsula, at 3,404 metres of altitude, situated in the Posets-Maladeta Natural Park, in the municipality of Benasque (Huesca). It forms part of the Maladeta massif, in the Benasque valley, and is made up of Palaeozoic granite terrain and Mesozoic materials. On its north face, from around 2,810 metres, extends the largest glacier in the Pyrenees, with close to 100 hectares of surface area, which over the last century has lost more than half its extent due to climate change and could disappear within three or four decades. Photo: Urban~commonswiki (Wikimedia Commons) (CC BY-SA 3.0) What to see and do in Benasque