Its diameter of 110m is identical to the ditch that encloses Stonehenge, and it is aligned on the midsummer solstice sunrise, just like the Wiltshire monument. A series of buried stone holes that follow the circle’s outline has been unearthed, with shapes that can be linked to Stonehenge’s bluestone pillars. One of them bears an imprint in its base that matches the unusual cross section of a Stonehenge bluestone “like a key in a lock”, the archaeologists discovered. – Irish Times
