Perte du Rhône, Slot canyon near Valserhône and Éloise, France.
The Perte du Rhône forms a deep natural fault reaching 60 meters in depth where the Rhône River flows through narrow limestone walls.
The construction of the Génissiat Dam in 1948 transformed the original canyon into a 23-kilometer reservoir extending from Génissiat to the Swiss border.
Eugène Renevier and François Jules Pictet published research about the geological formations and fossils found in the Perte du Rhône area in 1854.
The site now serves as a reservoir, demonstrating the transformation of natural waterways for hydroelectric power generation in eastern France.
During dry seasons, the Rhône River would disappear into this geological formation, creating a natural phenomenon that marked the boundary between Ain and Haute-Savoie.
Location: Valserhône
Location: Éloise
Elevation above the sea: 304 m
GPS coordinates: 46.10611,5.83167
Latest update: June 23, 2025 09:48
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Pertes de la Valserine
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Pont de Grésin
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Pont de Savoie
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Viaduc de Bellegarde
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Château de Mussel
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Viaduc de la Valserine
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Château de Musinens
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War memorial of Bellegarde-sur-Valserine
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Town hall of Bellegarde-sur-Valserine
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Église Saint-Nicolas d'Arlod
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Église Saint-Nicolas de Villes
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Église Saint-Paul de Vouvray
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Église Saint-Claude de Vanchy
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Église Saint-Amand de Lancrans
2.1 km
Église Notre-Dame-de-l'Assomption de Bellegarde-sur-Valserine
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Chapelle Notre-Dame-des-Grâces de Lancrans
2.2 km
Mairie de Villes
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Former town hall of Arlod
1.5 km
War memorial of Lancrans
2.1 km
War memorial of Arlod
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War memorial of Vanchy
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Église Saint-Vincent d'Éloise
3.6 km
Former town hall of Coupy
135 m
Ancienne mairie de Vouvray
3.8 km
Town hall of Lancrans
2.1 km
War memorial of Vouvray
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War memorial of Maquis in Léaz
3.9 kmReviews
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