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Heritage classified

Key figures

Origin and history

The Dolmen de Lestriguiou, located in the commune of Plomeur in Finistère, is a megalithic vestige dated from the Neolithic. Ranked a historic monument in 1927, it was damaged during the construction of a rural road before being restored in 1977 by the equipment services. Its current structure, reduced to a bedroom of 2 m by 1.50 m, retains four orthostats supporting a covering slab. The excavations of 1876 revealed Kerugou-type pottery (final Neolithic) and flint or dolerite tools, including an archer armband.

Originally interpreted as a "V" corridor dolmen or a covered driveway, it is now considered a dolmen with lateral entrance by Jean L-Helgouach. This hypothesis is based on two perpendicular stones visible on the plan of Paul du Châtellier, suggesting a southern lateral corridor. The archaeological furniture discovered (carneous vases, axes, pendants) attests to a funeral and ritual occupation, typical of neolithic practices in Brittany.

The site, referred to in the Merimée database under code 29171 (Communal of Plomer), has an approximate location (precision: 5/10). Although partially destroyed, it illustrates Finisterian megalithic architecture and its evolution, from the first collective burials to later adaptations. Its ranking among historical monuments and its mention in regional inventories underline its heritage importance.

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