Lac de Cap-de-Long

Lac de Cap-de-Long sits at an elevation of 2,161 meters in the French Pyrenees, forming an artificial reservoir managed by EDF for hydroelectric power generation and water regulation.

This artificial lake was constructed during the 20th century as part of France's hydroelectric development program, requiring advanced engineering techniques to build a stable reservoir at high altitude.

The reservoir has been designated as Remarkable Contemporary Architecture, representing the successful integration of modern engineering with the natural Pyrenean landscape and sustainable energy principles.

The site serves primarily for hydroelectric power production while also providing flood regulation and water storage, with access typically restricted to professionals and organized tourist groups.

The reservoir functions as both a crucial energy infrastructure and a research site for hydrology studies, demonstrating how modern architecture can harmoniously coexist with mountain ecosystems.

Location: Hautes-Pyrénées

Elevation above the sea: 2,161 m

Operator: EDF

Address: Lac de Cap-de-Long, 65170 Aragnouet, France 65170 Aragnouet

GPS coordinates: 42.82500,0.12972

Latest update: July 25, 2025 20:49