Carnac is a small village of about 5,000 people in the region of Brittany, northwestern France. It is home to the Carnac Stones, a system of more than 3,000 prehistoric standing stones.
The Carnac Stones were hewn from local rock and erected by the pre-Celtic people of Brittany. The megaliths were erected during the Neolithic period which lasted from 4500 BC until 2000 BC. The precise date of the stones is difficult to ascertain as little dateable material has been found beneath them. About 3300 BC is the date most commonly estimated for the site's main phase of activity, but some megaliths may date to as early as 4500 BC.
One interpretation of the site is that successive generations visited the site to erect stones in honor of their ancestors. The Carnac Stones consist of both single standing stones (menhirs) and multistone clusters (dolmens).
There are several discrete groups of stone alignments at Carnac. The Menec alignments are 12 converging rows of menhirs stretching more than a kilometre with the remains of a stone circle at either end.
The largest stones, around 4m high, are at the wider, western end; they become smaller along the length of the alignment reaching around 0.6m high, at the extreme east they grow to in height.
