Lac de Gérardmer
Grand Est
Lac de Gérardmer is a picturesque glacial lake located in the commune of Gérardmer in the Vosges department of the Grand Est region, France. It lies at an altitude of approximately 660 meters and covers an elliptical surface area of about 115.5 hectares. The lake stretches roughly 2 kilometers in length and 750 meters in width, with a maximum depth of 38.4 meters. Formed during the last glaciation period, its basin is retained by a prominent terminal moraine, making it one of the notable lakes in the Vosges massif alongside Lac de Retournemer and Lac de Longemer. The lake feeds into the Vologne river via a short emissary called the Jamagne. Surrounded by forested mountains, Lac de Gérardmer is adjacent to the town of Gérardmer, which is often referred to as "the pearl of the Vosges." The lake offers a variety of recreational activities such as swimming, fishing, and boating, although it has a complex environmental history due to the presence of submerged munitions from the World Wars. Despite extensive clearance efforts, some contamination remains, yet the lake continues to be a cherished natural site for visitors and locals alike. Its scenic shores and proximity to hiking trails and mountain passes make it a favored destination for nature lovers and outdoor enthusiasts.
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Astuce: The best time to visit Lac de Gérardmer is during late spring to early autumn when the weather is favorable for outdoor activities like swimming, boating, and hiking. Visitors are advised to check local regulations regarding swimming and fishing, as some restrictions may apply due to environmental concerns. Purchasing tickets or permits for fishing in advance is recommended. Exploring the surrounding Vosges mountains and nearby natural landmarks enhances the experience. Early morning or late afternoon visits offer picturesque lighting and fewer crowds.
Faits intéressants
- •Lac de Gérardmer is one of three major Vosges lakes formed by glacial activity, alongside Lac de Retournemer and Lac de Longemer.
- •The lake has a maximum depth of 38.4 meters and covers an area of about 115.5 hectares.
- •Between 1977 and 1994, over 120 tons of munitions were removed from the lake bed, representing roughly 100,000 pieces of ammunition from World Wars I and II.
- •Despite extensive cleanup, the lake remains contaminated with toxic substances such as TNT, iron, lead, and titanium exceeding environmental norms.
- •The lake feeds into the Vologne river through a short emissary called the Jamagne.
Histoire
Lac de Gérardmer was formed during the last glaciation of the Quaternary period, specifically after the Würm glaciation around 80,000 to 10,000 years ago.
Its basin was shaped by glacial activity and blocked by a significant terminal moraine that prevented the valley from draining downstream.
Historically, the lake has been central to the development of the town of Gérardmer, which was founded near the lake in 1285 and named after Gerard, Duke of Lorraine, who built a tower on its banks in the 11th century.
Throughout the 20th century, the lake was used as a site for disposing of weapons and munitions from both World Wars, leading to environmental challenges that required extensive cleanup operations between 1977 and 1994.
Despite these efforts, some contamination persists to this day.
Guide du lieu
Lake Shore and Walking Trail
A scenic elliptical path of about 5.5 kilometers surrounds Lac de Gérardmer, offering visitors panoramic views of the water and surrounding forested mountains. The trail is ideal for leisurely walks, cycling, and nature observation.
Boating and Recreation Area
The lake supports various water activities including boating, swimming, and fishing. Designated areas provide safe access for recreational use, with facilities available near the town.
