English downland has attracted human habitation since prehistoric times. The ancient track known as the Ridgeway runs along the Berkshire Downs. Prehistoric sites in the Downs include Wayland's Smithy (Neolithic), numerous tumuli (Neolithic or Bronze Age), Uffington White Horse (Bronze Age), Liddington Castle and Uffington Castle (Bronze Age and Iron Age), and Segsbury Camp and Grim's Ditch (Iron Age).