Free mining requires a specialist knowledge of the land and its archaeology, and a licence to mine - bestowed by birthright. Christine Manby shares a cup of tea underground with the free miners of the Forest of Dean
Ancient art of free mining in the Forest of Dean could solve a very modern problem
31. října 2018 16:01
Klimatická změna
Příroda
Celý článek: http://www.independent.co.uk/news/long_reads/forest-of-dean-free-mining-methods-coal-seam-coalfield-a8605426.html
Zdroj: The Independent
