Hard Rock Cavern: 3 Iron Ore Iron Mine, Rusty Caves, Cache, Hard Rock Cavern: 33 Tin Tin Cave, Tin Tunnels, Hard Rock Cavern: 6 Lumber Abandoned Tunnel, Lumber Warehouse, Shifting Forest, Cache: 7 Stone Small Stone Pit, Stony Landslide, Mountain Range, Cache, Hard Rock Cavern: 22 Bronze 32 Iron 8 First available in Scandinavia . Material Repeatable Mine .