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They Went Looking for Gold And Found a Mine Covered in Living Creatures
Dawson Forest’s abandoned gold mines offered a mix of dangers: deep water, unstable rock, sudden drop-offs, and shafts that went from wide to claustrophobic in seconds. The explorers discovered entire ...
For the past 250 years, people have mined coal industrially in Pennsylvania, U.S.. By 1830, the city of Pittsburgh was using more than 400 tons of the fossil fuel every day. Burning all that coal has ...
Boulder, Colo., USA: For the past 250 years, people have mined coal industrially in Pennsylvania, USA. By 1830, the city of Pittsburgh was using more than 400 tons of the fossil fuel every day.
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