5 years ago
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Canadian team confirms presence of huge unexplored cave in British Columbia
Cave in Wells Gray Provincial Park described as “about as big as they come in Canada”
Continue Reading https://www.canadiangeographic.ca
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I read this earlier today. I understand that the snow only gave way 20 to 50 years ago, but it's still pretty amazing that in 20+ years, none of our sattelite imaging and mapping picked it up.