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Origin and history

The Richebourg stone, also called Menhir de Richebourg, is a block of prismatic quartzite located in the town of Retiers, Ille-et-Vilaine. Oriented east-west, it is 3.15 meters high for 2.35 meters wide and 1.50 meters thick. Traces suggest that it was initially higher, its upper part probably being debited. This menhir, whose conservation was initiated in 1888 by the Prefect Buisson de Vitré, is mentioned in the former Joanne Guides, precursors of the Blue Guides.

Ranked as historical monuments since 1 September 1977, the Richebourg Stone is associated with local legends. Paul Bézier, a member of the Ille-et-Vilaine Archaeological Society, reports a tradition evoking a handprint on his upper part and the past existence of a surrounding cromlech, although no archaeological evidence has confirmed this hypothesis. The menhir was also said to have served as a "stand" for the crowd, according to popular accounts.

Archaeological research, including that of Paul Bézier in 1883 and 1886, as well as more recent works such as those of Jacques Briard in 2004, documented this monument as part of the megaliths of Ille-et-Vilaine. His study contributed to the understanding of neolithic practices in Brittany, where menhirs often played a symbolic or ritual role in prehistoric societies. However, no tangible trace of the suspected cromlech has been identified to date.

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