Cromlech de Crucuno, Neolithic stone circle in Plouharnel, France
The Crucuno cromlech is a rectangular stone circle formed by twenty-two granite blocks standing in Plouharnel. The structure measures roughly 35 meters long and 26 meters wide, creating a clear geometric shape that you can walk around.
The site was classified as a historical monument in 1889 following restoration work by archaeologist Felix Gaillard in 1887. The restoration changed how the stones were arranged compared to their original placement.
The stone arrangement aligns with cardinal directions, with its diagonals pointing toward sunrise and sunset during the solstices. This reveals that the people who built it paid close attention to the sky and incorporated celestial cycles into their practices.
The site is reached via the Circuit de Crucuno walking trail, which links several archaeological locations in the area. The grounds are open to the public and can be visited at any time during daylight.
Research by Dryden and Lukis in 1867 showed that the original stone arrangement was quite different from what stands today. This discovery reveals how significantly the nineteenth-century restoration altered the original layout.
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