|
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Koschmann, Albert Herbert, Bergendahl, M.H. (1968) Principal gold-producing districts of the United States. Professional Paper 610. US Geological Survey doi:10.3133/pp610 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
- Silver Hill Mining District
| Christopher P.Indorf,1981,Economic Geology (v.76,p.1170)The Silver Hill zinc deposit and associated deposits,central North Carolina |
| Nitze,Henry B.C and Wilkens,H.A.J.,(1897)Gold Mining In North Carolina NCGS Bulletion No.10 |