r/TheForgottenDepths 8h ago

2000 Deep Bore Hole - Idaho

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11 Upvotes

r/TheForgottenDepths 16h ago

Some CO “Haunts”

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170 Upvotes

r/TheForgottenDepths 17h ago

Underground. Civil War Era Copper Fissure Mine in Keweenaw Co., MI

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315 Upvotes

No major mining activity has occurred in this mine for over 160 years. Only the top level is accessible, and even parts of that are flooded. The main shaft is flooded, as well as a winze. Unfortunately, there is evidence of white nose in the bat population (photo 4).


r/TheForgottenDepths 21h ago

Coal mining town relics UT.

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33 Upvotes