Dolmen de la Loge-au-Loup, dolmen in Trédion, France

The dolmen de la Loge-au-Loup is a gallery grave built from large granite blocks in Trédion. The structure resembles a long corridor with upright stones on both sides supporting a large flat capstone, measuring about 30 feet (9 meters) long and roughly 5 feet (1.5 meters) wide.

The gallery grave was erected in the Neolithic period, and its original tumulus is estimated from surviving perimeter slabs to have measured 14 m long by 5 m wide. Only one capstone remains in place today. Oaks growing close by are now shifting the stones with their roots.

The name Loge-au-Loup, "wolf's lodge", is a place-name rather than a description of the monument, which is a gallery grave. The site lies in the woods on the territory of Trédion, in Morbihan. Visitors today see a megalithic chamber whose slabs are being displaced by the roots of nearby oaks.

The dolmen is freely accessible with no entrance fee or advance booking required. The site sits in a quiet rural area, so wear comfortable shoes and come prepared for uneven ground.

The gallery is framed by two rows of leaning orthostats on each side, a design perhaps chosen to steady the covering slabs; only one capstone remains in place. The end slab is monumental, and surviving stones of the original mound suggest it measured 14 m by 5 m. Oaks growing beside the monument are pushing the stones apart with their roots.