Nez Coupé du Tremblet, Mountain summit in Saint-Philippe, Réunion, France

Nez Coupé du Tremblet is a 1,913-metre summit on the Saint-Philippe side of the cliff that bounds the southern edge of Enclos Fouqué, the caldera of Piton de la Fournaise. It separates the rempart du Tremblet to the east from the rempart de Bellecombe to the west. The summit is dark grey and black volcanic rock, with low green and grey shrubs among broken stones and a steep, mist-wrapped wall above.

The summit sits on the cliff separating the rempart du Tremblet to the east from the rempart de Bellecombe to the west, along the southern edge of the Enclos Fouqué, the caldera formed by the Piton de la Fournaise. The whole massif is built from lava flows that repeatedly covered the Grandes Pentes below the summit. The Nez Coupé lies entirely within Réunion National Park, and its southern slopes belong to the integral biological reserve of the Hauts de Saint-Philippe.

The name Nez Coupé, "cut nose", describes the sharp cliff edge that separates the rempart du Tremblet to the east from the rempart de Bellecombe to the west. The summit lies entirely within Réunion National Park, and its southern slopes fall inside the réserve biologique intégrale des Hauts de Saint-Philippe, a fully protected reserve where access is restricted.

The summit is not a hiking destination: its southern slopes lie in the réserve biologique intégrale des Hauts de Saint-Philippe, a fully protected reserve where access is restricted, and the whole massif belongs to the parc national de La Réunion. The cliff edge above the Enclos Fouqué drops eastward toward the pointe du Tremblet and the hamlet of Tremblet, and westward the wall climbs to the piton de Bert at 2261 m. The summit can be seen from outside the protected zone, but not entered.

The summit marks the divide between two cliff walls of the Enclos Fouqué: the rempart du Tremblet to the east and the rempart de Bellecombe to the west. Westward the wall climbs to Piton de Bert at 2261 m; eastward it drops toward the Indian Ocean, the pointe du Tremblet and the hamlet of Tremblet.