Minera Lead Mines - Wikipedia
History. The first written record of lead mining at Minera dates back to 1296, when Edward I of England hired miners from the site to work in his new mines in Devon. Not all of them vacated the area, however, as mining went on until the Black Death in 1349, when it ended.. In 1527, two men bought the rights to mine on the site, but deeper workings were unworkable due to the presence of ...