Numerous examples of mines are known all over Europe, from the east: Rudna Glava (Serbia), Ai Bunar (Bulgaria); to the west: Mount Gabriel (Ireland), Great Orme, Alderley Edge (United Kingdom); crossing Central Europe: Mitterberg (Salzach, Austria), Neuchâtel (Switzerland), Cabrierés (France); to the south: Riotinto, Mola Alta de Serelles (Spain); and the Mediterranean: Corsica, Cyprus, and the Cyclades islands. It is remarkable that, usually, it is not a single mine but a complex, with a variable, large number of mineshafts, as in Rudna Glava (30) or Mount Gabriel (31).