“Michigan Copper -- The Keweenaw: Its Mines and Minerals, Then and Now” with James Hird
18:44
The Meteorite That Buried Michigan | The Sudbury Impact
20:17
DISCOVERING | Copper Country
28:10
Old Copper Culture: North America's Forgotten Metal Workers
52:50
The Controversy Surrounding The Michigan Relics Explained | The Michigan Relics | Real History
18:25
Exploring Copper Mine Ruins in Michigan's Upper Peninsula
11:34
America's First Metal Industry: The Old Copper Complex
12:36
Why So Few People Live In The Northern Part Of Michigan
51:53