"planted from the 1920s onwards on heavily tin-mining degraded land" (AB ev)

"After silver, tin was historically the second most important metal that was mined and processed in the Ore Mountains." (AB ev)

"Camborne and Redruth with Wheal Peevor and Portreath Harbour: .. the mineral resources of the granite ridge that dominates this area produced some of the richest and deepest copper and tin mines in the world" (AB ev)