Grime's Graves Prehistoric Flint Mine

Grime’s Graves is the only Neolithic flint mine open to visitors in Britain. This grassy lunar landscape of 400 pits was first named Grime’s Graves by the Anglo-Saxons. It was not until one of them was excavated in 1870 that they were identified as flint mines dug over 5,000 years ago. A small exhibition area illustrates the history of this fascinating site. Visitors can descend nine metres by ladder into one excavated shaft to see the jet-black flint. Note: Under 5s not allowed into the mine shaft.