Dolmen d'Ar Roc'h, Neolithic dolmen in Ploemeur, France.
Dolmen d'Ar Roc'h is a Neolithic megalith featuring a massive capstone supported by four upright stones arranged to form a square burial chamber. The interior space measures roughly 2.20 meters on each side and once sat beneath a surrounding earthen mound.
This megalith dates to the late Neolithic period when hunter-gatherer communities in this coastal Breton region began constructing permanent stone monuments. Archaeological finds suggest the site was used across several generations.
The cupules carved into the inner surface of the southwestern stone suggest the builders engaged in ritual or astronomical practices. These marks reveal something about how the Neolithic people who built this structure related to the sky and sacred ceremonies.
The dolmen sits in open countryside and remains accessible year-round, though warmer months offer more pleasant visiting conditions. Wear sturdy footwear since the terrain can be uneven and sometimes muddy.
The original mound of earth and stones that surrounded the dolmen remains largely intact, forming a distinct circular shape around the central chamber. This preservation makes it one of the more complete examples of Breton megalithic construction.
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