Mont Aiguille is a mountain in the Vercors Plateau of the French Prealps, located 58 km (36 mi) south of Grenoble, in the commune of Chichilianne, and the département of Isère. The mountain, known as one of the Seven Wonders of Dauphiné, is a relatively flat limestone mesa (a table shaped elevated area of land) surrounded by steep cliffs. The mountain lies within an area designated in 1985 as the Vercors Regional Natural Park. Mont Aiguille's limestone cliffs, especially on the northwest side, are popular with climbers. It is notable for its first climb in 1492, which was said to mark the "birth of mountaineering".