Dent d'Orlu, Mountain peak in Orlu, France

Dent d'Orlu is a mountain peak in the Pyrenees rising to around 2200 meters, marked by distinctive rock walls and steep slopes. The massif dominates the landscape and displays complex rock formations throughout its structure.

The peak is a block of gneiss, a metamorphic rock formed from granite and exposed by erosion of the Hercynian chain. Maps of the 1880s name it pic de Berceil or pic de Brasseil; the popular name Dent d'Orlu dates from the early 20th century, from its pointed canine shape. In 1897 annual isard hunts were held on the peak, and in 1902 Jean d'Ussel failed in an ascent from Orlu, recorded by Henri Beraldi.

The name "dent d'Orlu" became popular in the early 20th century, likely because the peak resembles a pointed canine; maps still label it "pic de Brasseil dit dent d'Orlu". In 1971 the Ariège painter Ryton Cazenave drew the peak, stylised, into the national badge of the Gendarmerie's mountain units, alongside the pic de Tarbésou. A legend from the late 19th or early 20th century is attached to the mountain.

The ascent requires good footwear and plenty of water, as the route can be exposed and challenging in places. It's best to start early and check weather conditions before heading out.

The southeast face features a sheer rock wall extending over 1000 meters, making it a notable climbing destination. Experienced climbers value this wall for its technically demanding lines.