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USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Moen, W.S., (1977), St. Helens and Washougal Mining Districts of the Southern Cascades of Washington: Washington Division of Geology and Earth Resources Information Circular 60, P. 43, 46-48. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey. Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey. |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 (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. |
- Washougal Mining District
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Moen, W.S. (1977) St. Helens and Washougal Mining Districts of the Southern Cascades of Washington. State of Washington Department of Natural Resources, Division of Geology and Earth Resources, Information Circular 60, p. 43, 58-59. Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey. Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. personal identification with Bart Cannon |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. Valentine, Grant M., Huntting, Marshall T. (1960) Part II - Metallic Minerals, in Inventory of Washington Minerals. Vol II. Bulletin 37, Washington Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Moen, W.S., (1977), St. Helens and Washougal Mining Districts of the Southern Cascades of Washington: Washington Division of Geology and Earth Resources Information Circular 60, P. 43, 54-56. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |