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USA | |
| Bornhorst T. J. Rose W. I. (2001) Self-guided Geological Field Trip to the Keweenaw Peninsula, Michigan. |
| Bornhorst T. J. and Barron R. J., (2013), Field Trip Guidebook, Institute on Lake Superior Geology |
| (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. |
| Frank Karasti |
Lakeshore traps, Eagle Harbor, Keweenaw County, Michigan, USA