Pas de Bellecombe-Jacob, Mountain pass and viewpoint at Piton de la Fournaise volcano, Réunion.

Pas de Bellecombe-Jacob is a mountain pass at 2,319 meters on the Rempart de Bellecombe, the crater wall overlooking the Enclos Fouqué caldera of Piton de la Fournaise. The pass is a broad saddle of dark grey and brown volcanic rock and gravel, strewn with loose stones and low green shrubs, with a white marker post near the trail. A metal gate can close the pass during volcanic activity, and a staircase descends about 100 meters to the caldera floor.

In 1768 an expedition of about twenty people set out from Saint-Benoît to find a way into the Enclos Fouqué. Governor Léonard de Bellecombe abandoned the search because of stomach cramps, but Honoré de Crémont offered six pieces of blue cloth to any enslaved person who found a descent; a slave named Jacob discovered the passage and descended with Crémont. The pass was named after Bellecombe, who never crossed it himself, and in 2019 the Sainte-Rose council added Jacob's name, unveiled on a plaque by mayor Michel Vergoz on 28 August.

The name honours Jacob, an enslaved man who found this descent into the Enclos Fouqué in 1768 after Honoré de Crémont offered six pieces of blue cloth to whoever located a way down. The commune of Sainte-Rose added his name to the pass in 2019, and mayor Michel Vergoz unveiled a plaque at the car park on 28 August 2019.

The site is easily accessible with parking and clear signage to help navigate the volcanic landscape. Visitors should prepare for changing weather conditions and the elevation, as conditions can shift quickly at this height.

The pass sits on the Rempart de Bellecombe, the crater wall of the Enclos Fouqué, at 2,319 metres. A metal gate at the pass can be closed during volcanic activity, and a staircase drops about 100 metres to the caldera floor. The Formica Leo cone, formed by a 1753 eruption, lies just southeast below.