Great read on the amazing world of cavers. Had no idea how deep some caves could be @patrickc: In Deep: http://newyorker.com/reporting/2014/04/21/140421fa_fact_bilger?currentPage=all …
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@patrickc check out blind descent, also about that cave system.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@patrickc Bill Stone is so amazing!Thanks. Twitter will use this to make your timeline better. UndoUndo
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