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Caving in North America's Rocky Mountains and the World
Derek Bristol “goes deep” into the recent surveys of Great Expectations Cave, a preserve owned by the National Speleological Society. Experience the suffocating low ceilings and cold water of the Grim Crawl, the fossils of the Cephalopod Malt Shop, and the airy volume of the Great Hall.
Interested in giving a presentation like this one? Contact us!