Grime’s Graves – Prehistoric Flint Mine

Location: Lynford, Thetford, Norfolk IP26 5DE

Telephone: 01842 810656

Email: bookeducation@english-heritage.org.uk

Website: www.english-heritage.org.uk

Grime’s Graves is the only Neolithic flint mine open to visitors in Britain. This grassy lunar landscape of 400 pits was first named Grim’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 9 metres (30 ft) by ladder into one excavated shaft to see the jet-black flint.

Offer for YAC Pass holders:
Free entry with a valid YAC Pass Card when accompanied by a paying adult

1. This offer is only valid at properties managed directly by English Heritage and entitles YAC Pass Card holders one free child entry when accompanied by a full paying adult or concession.
2. Offer is only valid to YAC Pass Card holders, holding a valid YAC Pass Card.
3. Offer is only valid at participating properties as listed on the YAC website.
4. Offer not valid in conjunction with guided tours, annual membership, family tickets, overseas visitor pass, paid events or any other discount or special offer.
5. The offer is not transferable or assignable and cannot be redeemed for cash.