In the pitch-black tunnels of Boliden’s Garpenberg zinc mine, over a kilometer below the surface of northern Sweden, 55 runners from 18 countries gathered to compete in one of the most extreme races ever attempted — the World’s Deepest Marathon
The course, carved through the humid, diesel-scented rock 180 kilometers northwest of Stockholm, spanned a 2-kilometer stretch of tunnel that participants ran back and forth 11 times to complete the full 42 kilometers Among them were mining executives, Boliden employees, ultra-marathoners, and first-time racers
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Source and Credit: mining.com
