Archaeological survey has shown how densely populated and at times intensively used the landscape has been over the last 6000 years. Classic sites include the Iron Age hill forts of Cissbury Ring, Charltonbury Hill, Old Winchester Hill, Bignor Roman Villa and Lewes Priory, but there are also hundreds of Scheduled Monuments and thousands of undesignated heritage assets across the landscape. A recent survey by English Heritage of the archaeology of the National Park within Hampshire revealed a rich and complex landscape of prehistoric, Roman and medieval field systems. There remains more to be discovered, particularly amongst the densely wooded landscape north of Chichester and within the Low Weald, where new technology can help us record features through even the thickest of tree cover.