North Carolina

North Carolina is located at the east coast. It has three main geographic regions: the Atlantic coastal plain, the central Piedmont region, and the mountain region in the west, which is part of the Appalachian Mountains. Coastal plains are not suitable for underground structures, all sites describe here are in the other two regions, most of them in the Appalachian Mountains. Notable is a small area in the western corner around Franklin, which they call the "Gem Mining Capital Of The World". Its actually nonsense, most gemstones are from India, Brazil, or Southeast Asia, but this area has several fee mines, where visitors can find gemstones in the dirt of open casts.