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Deeper underground: Inside Grime’s Graves
Grime's Graves, near Thetford, is Britain’s only open Neolithic flint mine and holds some amazing history.
Edd Smith met Jennifer Wexler to find out more and hear how 4000 years since they created its current custodians are looking to the future.
(Photo credit: Edd Smith/ÃÛÑ¿´«Ã½)
