Guerlédan DamBarrage de Guerlédan

Guerlédan Dam, built on the Blavet in 1923–30, is a modern intervention that remade central Brittany, creating the region’s largest reservoir and drowning valleys of farms, locks, and chapels. Its hydroelectric promise came with displacement and a reshaped rural memory, so the lake reads as both resource and wound. When the water is periodically drawn down for maintenance, the stone shells of hamlets return, turning an engineering monument into a fleeting landscape of remembrance.