La Soufrière, Volcanic crater in Sainte-Rose, France.

La Soufrière is a small volcanic crater at the summit of Piton de la Fournaise, about 2,530 metres up in Sainte-Rose, within Réunion National Park. It lies just north of the much larger Dolomieu crater and opens into it in a half-moon shape, forming a notch in Dolomieu's northern wall.

La Soufrière formed in 1965 during an eruption a few metres north of the Dolomieu crater. When the Piton de la Fournaise observatory explored it in 1980, it measured only six metres across; by 2000 it had widened to eighty metres. In April 2007 the eruption of the Piton de la Fournaise collapsed its southern flank, opening it onto the Dolomieu as a notch in that crater's northern wall.

The crater's name refers to sulfur, and its growth has been measured by the Piton de la Fournaise Volcanological Observatory, which explored it in 1980 when it was only six metres across. Walkers on the Enclos Fouqué trail pass the rim on the way to the Formica Leo and Dolomieu viewpoints.

La Soufrière sits at about 2,530 m on the summit of the Piton de la Fournaise, north of the Dolomieu crater, in the Sainte-Rose commune within Réunion National Park. It is reached on foot from the volcano observatory near the park entrance, roughly a two-hour hike on a marked trail. Bring sturdy hiking gear and be ready for rain and fog at this altitude.

La Soufrière is not a separate volcano but a small crater on the summit of the Piton de la Fournaise, opening onto the larger Dolomieu crater in a half-moon shape. It measured only six metres across when the Piton de la Fournaise Volcanological Observatory explored it in 1980, but had widened to eighty metres by 2000.