Timeline

Heritage classified

Origin and history

The Menhir d'Argenton, also known as Menhir de Saint-Gonvarc'h, is an iconic megalithic monument located in the municipality of Landunvez in Finistère. This imposing block of porphyroid granite, measuring 5.40 meters in height, was completely regulated by boucharding, a technique of size characteristic of the time. Its western face has a cupula of 13 cm in diameter, an architectural detail notable for researchers.

Ranked as historical monuments in 1889, and again by arrest in 1969, this menhir appears as Mez menhir on the cadastral plan of 1844. Its large crystal granite of pink feldspath, typical of the Aber-Ildut region, makes it a remarkable example of the Breton megalithic heritage. The site, although located with average accuracy (level 5/10 depending on the sources), remains a major point of interest for the study of Neolithic in Brittany.

The Argenton Menhir illustrates the importance of megalithic monuments in prehistoric societies, often associated with ritual or commemorative functions. Its early ranking among historical monuments underscores its heritage value, while its location in Landunvez, near the Aber-Ildut, reflects the ancient occupation of this coastal territory. Available sources, including Wikipedia and Monumentum, confirm its status as a protected and studied vestige.

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