There were many traditional rituals at the Men-an-Tol, distinguished by its strangely pierced central stone. The monument consists of four stones: one fallen, two uprights, and between these a circular one, 4 1/2 ft in diameter, pierced by a hole that occupies about half its size. An old plan of Men-an-Tol shows that the three main stones originally stood in a triangle, which makes certain astro-archaeological claims for it difficult to support. The stones are possibly the remains of a Neolithic tomb, because holed stones have served as entrances to burial chambers. Its true age is uncertain, but it is usually assigned to the Bronze Age, between 3000-4000 years ago.
