History:Cave of the Mounds takes its name from the Blue Mounds, two large hills which have long been Wisconsin landmark features. The West Mound, a...
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Maquoketa Caves is probably Iowa's most unique state park. Its caves, limestone formations and rugged bluffs provide visitors a chance to "step bac...
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In 1868 lead miners drilled 40 feet into the ground to find traces of a rich lead vein. In this process they found very little lead, but instead di...
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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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