[1] Some of the summits are over 3,000 m high and the highest mountain in Catalonia (Pica d'Estats), as well as the highest mountain in Ariège (Pic de Montcalm), are part of this massif.

[2] The Parc naturel régional des Pyrénées ariégeoises is located on the French side of the massif area[3] and the Parc Natural de l'Alt Pirineu on the Spanish side.

[4] Climbing some of the summits is not easy and there have been occasional accidents involving overconfident mountaineers.

The lake stays frozen most of the year, but the ice is usually totally melted at the end of the summer.

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