3D LiDAR model of Oldbury Hillfort in Kent, UK. The digital terrain model offers a view of the surrounding landscape without obstruction from foliage. Hillforts were settlements built on natural hills, fortified with earthworks around the hills contours. These were widely constructed across Britain and Ireland in the centuries leading up to the Roman conquest of these regions. Oldbury Hillfort was built in the 1st century BCE by Celtic British tribes. Image contains UK public sector information licensed under the Open Government Licence v3.0.