Britice Glacial Map V2.0 (The UK and Ireland 27,000 years ago)
Geology of Britain Viewer
Megaliths and Henges of the British Isles and Ireland
Atlas of Hillforts of Britain and Ireland
Lock, G, and Ralston, I. 2017 Atlas of Hillforts of Britain and Ireland. [ONLINE] Available at: https://hillforts.arch.ox.ac.uk