It forms part of the Carnota Open-air Archaeological Museum. The hillfort dates back to between the 6th century BC and the 1st century AD. It has an oval structure with two separate walls, reinforced by a third wall on the southern façade. It has been shrouded in numerous myths and legends over the years. The best-known is that this hillfort was the residence of the Queen Lupa and, as proof of this, her throne is still conserved in the centre – a stone with a chair-like appearance.