Largely levelled by ploughing. About 30 flint mines accessible by public footpath on the SE side of the hill overlooking Cissbury. 36 shafts, from 3 to 6 metres deep working 6 seams of flint. Radiocarbon dated to 3390BC
ref. "Prehistoric Flint Mines" (Shire Archaeology) by Robin Holgate (1991)