Grand Veymont, Mountain summit in Isère, France

Grand Veymont is a mountain summit in the Vercors Massif within the Dauphine Alps, reaching 2,341 meters in elevation. The peak overlooks surrounding ridges and valleys with steep limestone cliffs marking much of the eastern side.

The summit's eastern cliffs are Glandasse or Urgonian limestone of Lower Barremian age, laid down between 125 and 130 million years ago, with bedding planes dipping at roughly 30°. During the last ice age a glacial tongue descended from the north-eastern slopes into the valley of Gresse-en-Vercors, leaving a moraine still visible west of the village. No permanent ice or snow remains on the mountain today. On 23 July 1944, five young resistance fighters from Gresse-en-Vercors were killed near the Pas de la Ville.

Alpine ibex, often mistaken for chamois because of their short horns, raise their young on the climb and stay at the summit year-round. Early in summer, Alpine poppies flower along the path edges, and yellow-billed choughs follow hikers. The summit lies in the Hauts Plateaux du Vercors nature reserve, where dogs are banned all year.

A multi-hour hike reaches the summit, with main routes starting from La Coche or Gresse-en-Vercors through backcountry terrain. The trails are most accessible from late spring through early fall when snow has melted from the upper paths.

The summit lies within the Réserve naturelle nationale des hauts plateaux du Vercors: dogs are banned year-round, and aircraft may not take off, land or fly below 300 m above the ground. Alpine ibex females, sometimes mistaken for chamois because of their short horns, raise their young on the climb and stay at the top all year.