The dam is one of the oldest in France and is recognized as a significant piece of 19th-century hydraulic engineering.
The reservoir was created to provide a steady flow of water to the Cure and Yonne rivers for the transport of timber logs.
The water level is strictly managed to balance recreational use, ecological health, and flood control for the Yonne valley.
The lake features a small island called 'Ile de la Gravière' which is a sanctuary for local bird populations.
Underwater archeological surveys have identified remnants of the original valley infrastructure submerged beneath the surface.
The reservoir holds approximately 19 million cubic meters of water at full capacity.
It is a key site for the Morvan Regional Natural Park's 'Green and Blue Corridor' biodiversity initiative.
Lac des Settons is a 367-hectare reservoir located in the heart of the Morvan Regional Natural Park in Burgundy, France. Constructed between 1854 and 1861, the lake is retained by a stone gravity dam originally built to facilitate the floating of firewood to Paris. The reservoir is fed by the Cure River and sits at an altitude of 597 meters. It serves as a hub for non-motorized water sports, including sailing, kayaking, and paddleboarding. A perimeter path of approximately 13 kilometers encircles the lake, catering to hikers and mountain bikers. The shoreline is characterized by forested slopes and artificial sandy beaches. The lake is designated as a protected site within a regional park, preserving its water quality and surrounding ecosystem. It remains one of the few places in the region where swimming is officially monitored in designated areas during the summer months.
The crest of the stone dam offers a panoramic view of the entire lake expanse.
Bring non-slip water shoes, as parts of the shoreline and lakebed can be rocky or muddy.
Check the local water quality reports posted at the main beaches if you plan to swim during late summer.
Rent watercraft from the local nautical bases on the south side for the best access to the deeper parts of the lake.
Attempting to swim outside of designated lifeguard-patrolled zones; expecting motorized watercraft rentals.
Water sports and lifeguard supervision are primarily available from late spring through early autumn.
Respect quiet zones near the bird sanctuary island; strictly follow marked swimming areas; carry out all trash to preserve the nature reserve status.
