Els 2900 —'The 2,900' in Catalan— is a run over the seven highest peaks of Andorra — all above 2,900m of altitude — from hut to hut. You can choose your own route between summits, but the most practical routes have been estimated to be roughly 70K and 6,700m of vertical. You will tag Pic de Coma Pedrosa (2,944m), Roca Entravessada (2,928m), Pic de l’Estanyó (2,915m), Pic de Medacorba (2,913m), Pic de la Serrera (2,912m), Pic de la Portelleta (2,905m) and Pic de Font Blanca (2,904m).

More info at els2900.com

A classic up and down of Pico Posets (3,371m, second highest peak of the Pyrenees) from Eriste near Benasque, Spain.