ARCHAEOLOGY

Rock Lake's ancient underwater structures may be part of huge copper-mining enterprise

In North American Archeological circles, one of the great enigmas is who mined the millions of tons of pure raw copper from Michigan's upper peninsula and Isle Royale in the time period between 3000 BC and 1200 BC. Indigenous use of copper was limited to small scale utilization and does not account for the prodigious amounts mined.
In European and Middle Eastern Archeological circles, one of the enigmas is where did all the copper come from to sustain the copper and bronze age cultures in the time period between 3000 BC and 1200 BC. Local sources were not sufficient and of the quality necessary to supply these large scale cultures.

The Rock Lake research Society's book The Dragon in the Lake, which documents the four years of research at Rock Lake, will be available soon. Another book, The Lost Pyramids of Rock Lake: Wisconsin's Sunken Civilization, by Frank Joseph is available here.