Lac de Saint-André, Protected lake in Porte-de-Savoie, France.
Located at the base of Mont Granier, Lake Saint-André spans 7.67 hectares with a depth of 14 meters, featuring wooden piers and nature trails.
The lake formed naturally on November 24, 1248, when a section of Mont Granier mountain collapsed, creating a depression that filled with groundwater and runoff.
The lake functions as a departmental protected site, hosting 216 plant species and 25 dragonfly species under conservation management by Savoie Nature Conservation.
Swimming is permitted exclusively in the designated leisure area, while fishing requires proper permits and adherence to seasonal opening times from March to December.
The lake contains three distinct zones: a natural reserve for wildlife protection, a fishing section with piers, and a recreational area for controlled activities.
Location: Porte-de-Savoie
Elevation above the sea: 292 m
Address: Lac de Saint-André, 73800 Porte-de-Savoie, France
GPS coordinates: 45.49410,5.98628
Latest update: June 23, 2025 09:45
The Auvergne-Rhône-Alpes area has lakes from very different beginnings. Large lakes that formed from glaciers, like Lake Bourget or Lake Annecy, appeared after the glaciers in the Alps melted. They have deep water surrounded by mountains. In the Massif Central, volcanic lakes sit in old craters, such as Lake Pavin, which is nearly 7,000 years old, and Lake Issarlès, which goes down more than 100 meters deep. Some lakes are high up in the mountains, like Lake Guéry at 1250 meters, while others are in flat land or in deep valleys. There are also several artificial lakes built in the 20th century to make electricity or manage water flow. Lake Monteynard was created in 1962 on the Drac river, and Lake Saint-Étienne-Cantalès, held back by a dam on the Cère river since 1945, are popular spots for swimming, sailing, and fishing. Each lake feels different: clear and cold mountain waters, wooded shores in Jura, changing colors in volcanic craters. Visitors can walk around these places, go by boat, or just enjoy the views from the banks.
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