Between 4000 and 6000 years ago, during what archaeologists call the Neolithic period, people carved cup marks and grooves on several stones on the edge of Great Wanney Crag. Archaeologists think the cup marked stones were created either as part of a religious ritual, or perhaps to mark boundaries or routes through the landscape. At least 1000 years later, between 2000 and 3000 years ago, during what archaeologists call the Iron Age, people built a defended settlement or hillfort in the same spot. The hillfort is surrounded by a stone rampart. The hillfort and cup marked stone are a Scheduled Monument protected by law.