Timeline

Heritage classified

Key figures

Origin and history

The covered alley of the Grimolet is a megalithic monument located in Ploufragan, in the department of Côtes-d-Armor, Brittany. Oriented east-west, it is 14 metres long and narrows to the west. Probably initially closed, it now only holds two dolerite blanket tables. An indicator menhir of 1.90 m height, located at 9.30 m east, is associated with it. A broken block between the two, once interpreted as a second menhir, is now considered as an overturned table.

The site was searched in 1842 and 1942. This last campaign revealed three polished axes, a cut flint and a pottery tison, attesting to its funeral and ritual use in the Neolithic. Materials (doleritis) and structure suggest a collective construction, typical of agro-pastoral societies of the time, where megaliths served as territorial markers and places of worship for local communities.

Ranked a historic monument by decree of 15 October 1952, covered street and its indicator menhir (cadastres AV 154) are now owned by the commune of Ploufragan. The site illustrates Breton neolithic funeral architecture, with an approximate location reported to the 3 avenue des Écoles or rue du Grimolet. Its heritage protection underscores its archaeological and cultural importance to the region.

External links