The peninsula was glaciated during the quaternary period; evidence from this era survives in the form of striae around Hungry hill, and erratics on the western road into Glengarriff. The first signs of human activity date to c 3000 BC, and consist of traces of Early Bronze Age settlements. The landscape is rich in megalithic monuments and other prehistoric archeological sites, including over 70 standing stones, 22 stone rows, 38 dolmens, as well as wedge tombs, stone circles. Later the area became a Viking settlement, as evident in place names such as Longhart. Levels of Early Medieval activity can be deduced from the presence of many ringforts, cashels, cairns and fulacht fiadh.