Other articles where vertical shaft is discussed: cave: Geomorphic characteristics of solution caves: Vertical shafts, by contrast, are controlled by the hydraulic forces of freely flowing water. They are often nearly perfect cylinders with circular cross sections. The walls are vertical and cut across the limestone beds with complete disregard for angle or composition of the beds. Vertical…
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File:Vertical shaft (Wandering Willie's Spring, Main Cave, Mammoth Cave, Kentucky, USA) 2 (24248295888).jpg - Wikimedia Commons
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File:Domepit (vertical shaft) in Great Onyx Cave (Flint Ridge, Mammoth Cave National Park, Kentucky, USA) 3 (8316981390).jpg - Wikimedia Commons