An hour-long tour by boat of underground Myst'ry River. Vistors travel the course of this ancient underground river, see rare blind cavefish and bl...
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Marengo Cave, U.S. National Landmark the most highly decorated cave known in the Interior lowlands, offers a contrast and variety of underground sp...
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Cliff Cave also known as "Indian Cave" is developed in Mississippian St. Louis limestone. With 4723 ft (1514 m) of cave passage surveyed, it is the...
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Natural History:Illinois Caverns is located in southwestern Illinois in Monroe County about 35 miles south of St. Louis. The entrance to the cave (...
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Squire Boone Caverns is a real place in southern Indiana where Squire Boone, younger brother of Daniel Boone, lived and worked. Near Historic Coryd...
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