|
USA | |
| Bill Thompkins |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources |
| Rudy Tschernich Zeolite Collection |
| Rudy Tschernich Zeolite Collection |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| personally collected 8-23-'09 personally collected 8-23-'09 |
| Jasper Gullyski Collection Jasper Gullyski Collection |
- Washougal Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources |
| Howard, D and B. Tompkins (2000) Minerals of the Last Chance Mine, Skamania County Washington USA Micro Probe, newsletter of the NorthWest MicroMineral Study Group, Spring 2000, Volume 1X, Number 1, pgs 7-9. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Dog Mountain, Skamania County, Washington, USA