• Historic site and monument

The Saint Guérin Dam

Saint Guérin, patron saint of herds gave his name to the valley and the dam, which was built between 1957 and 1961. The dam contributes to feeding Lake Roselend through a connecting pipe between the reservoirs that operate in the manner of communicating vessels.

Historic site and monument The Saint Guérin Dam Arêches-Beaufort


Arêches-Beaufort (73270)
Unguided individual tours available permanently

Its water surface is 50 hectares with a depth of 70m and a capacity of 13 million m3. Its arched-gravity structure measures 250m long. The reservoir receives each year the equivalent of twice its storage capacity.


Languages spoken : French
Languages of documentation : French
Languages informatives signs : English, French


From 01/06 to 18/10, daily.

  • Motorhomes allowed
  • Tourist information
  • Parking
  • Public WC


Saint Guérin 73270 Arêches-Beaufort

  • Accessible for wheelchairs with assistance
  • Incline >5% but reasonable
Information update on 10/05/2020 by Office de Tourisme d'Arêches-Beaufort