Formica Leo, named for its similar shape to the pitfall built by the

antlion The antlions are a group of about 2,000 species of insect in the neuropteran family Myrmeleontidae. They are known for the predatory habits of their larvae, which mostly dig pits to trap passing ants or other prey. In North America, the larvae ...

, is a small volcanic crater of the

Piton de la Fournaise Piton de la Fournaise (; en, "Peak of the Furnace") is a shield volcano on the eastern side of Réunion island (a French overseas department and region) in the Indian Ocean. It is currently one of the most active volcanoes in the world, along ...

(

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

for "Peak of the Furnace"), the active volcano on the eastern side of

Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island ...

island (a

department Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military *Department (administrative division), a geographical and administrative division within a country, ...

) in the Indian Ocean. It is located at the bottom of the

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...

called

Enclos Fouqué The Enclos Fouqué is the most recent caldera build by the Piton de la Fournaise, the active volcano of the isle of la Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an ...

, just beneath the

mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...

Pas de Bellecombe Pas de Bellecombe-Jacob is a mountain pass and vista point overlooking Enclos Fouqué, the last caldera formed by Piton de la Fournaise, the active volcano on the eastern side of Réunion island (a French department) in the Indian Ocean. It is ...

Geography

{{DEFAULTSORT:Fournaise, Piton De La Volcanic craters Hotspot volcanoes Parasitic cones Volcanoes of Réunion Mountains of Réunion