America's First Metal Industry: The Old Copper Complex
15:03
The Largest Prehistoric Copper Mine in the World
28:10
Old Copper Culture: North America's Forgotten Metal Workers
16:15
The Ancient Copper Mine that Transformed Britain
29:12
The Best Evidence For The First Americans...so far
18:29
World Domination and Nitrates: Part 1. The Gunpowder Empires
11:43
The Copper Age Explained (The rise of civilization)
1:54:00
“Michigan Copper -- The Keweenaw: Its Mines and Minerals, Then and Now” with James Hird
7:44