A 3D rendering of the geology of Kelston Roundhill towards Bristol, showing the Avon on the left and Lansdown escarpment (yellow, right).

The British Geological Survey has a superb new “Geology of Britain” service offering 3D visualisation of the geology of the UK. The index is here -just type in a location and use the maps. It’s still a trial so they respond to feedback.

From directly above showing Kelston (centre) and Bath to Solsbury Hill (bottom right).