LiDAR strips away trees and vegetation to reveal earthworks invisible from the ground — hillforts, deserted medieval villages, Roman roads and Bronze Age field systems, hidden in plain sight across the landscape. It's popular with archaeology enthusiasts, local historians, and metal detectorists.
Coverage spans England and Wales at high resolution, so there's plenty to find. A note for metal detectorists: many of the clearest features are Scheduled Monuments, where detecting or digging isn't permitted under any circumstances — and for anything else that catches your eye, always get the landowner's permission before you go and look.
See also: Norfolk · Hampshire · Essex · Lincolnshire · North Yorkshire · Wiltshire · Suffolk · Oxfordshire · Kent · Gloucestershire