Copper Island - Alternate Use

Alternate Use

The phrase "Copper Island" was also used, especially in the 18th century, to describe a possibly mythical island in Lake Superior where there is an abundance of copper sitting on the surface of the land. While some scholars believe this was a reference to Isle Royale, the "island," because of its abundance of copper, could also have been the northern Keweenaw Peninsula., especially given the presence of vast quantities of native copper in the region.