Miner miracle • Earth.com Miner miracle

MacDonald’s research has revealed the extent of mining activity that once took place in Yellowstone, specifically at a landmark called Obsidian Cliff. He explained to Smithsonian, “Native Americans were the first hard-rock miners in Wyoming and it was arduous work. We’ve found more than 50 quarry sites on Obsidian Cliff…” Photo credit: Acroterion/Wikipedia | CC BY-SA 3.0

News coming your way
The biggest news about our planet delivered to you each day