The name 'Cromlech' is derived from Welsh and Breton words meaning 'crooked' (crom) and 'stone' (lech).
The site is often referred to locally as the 'Stone Circle of Kergonan' despite its current semi-circular orientation.
The granite used for these megaliths is consistent with the geological composition of the island, suggesting local sourcing.
The site remains largely unprotected by permanent fencing, allowing visitors to walk directly up to the stones.
Archaeologists have debated whether the gap in the circle is due to the original architectural design or subsequent human interference.
The surrounding landscape contains evidence of smaller, satellite burial mounds common in the Gulf of Morbihan's Neolithic culture.
The Cromlech de Kergonan is a Neolithic stone circle located on the Île-aux-Moines in the Gulf of Morbihan, France. It consists of 24 remaining granite megaliths arranged in a semi-circle that measures approximately 100 meters in length. Archaeological studies indicate the site dates back to the Neolithic period, likely between 4500 and 2000 BCE. The stones are positioned along a gentle slope, and the structure is partially integrated into the rural landscape near the Greignon area. Originally, the circle is believed to have been much larger, potentially forming a full oval or circle before modern agricultural activities and construction displaced several stones. It is considered one of the most important megalithic sites in the Morbihan department due to its scale and preservation. Unlike many other sites in the region, the stones are not arranged in precise alignments but follow the natural topography of the island.
From the western edge of the circle looking toward the sunrise to capture the alignment of the stones against the horizon.
Wear sturdy, closed-toe walking shoes as the path to the stones is unpaved and can be uneven.
The site is located on a public road but is not explicitly signposted from all island entry points; use a detailed local map.
Visit during low tide or cloudy weather to experience the site without the intense glare of the sun on the grey granite.
Do not attempt to access the site via private farm fields; stay strictly on the public paths.
Respect the stones by not climbing or sitting on them to preserve the integrity of the megaliths.
