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Summary of upland limestone drainage features
A summary of the drainage features of upland limestone areas with annotated examples of each feature. Limestone is a pervious, permeable rock through which water can flow underground at swallow holes and water sinks. The water flows through underground cave systems depositing calcite crystal to form stalactites and stalagmites. The flow of meltwater during the ice age eroded the landscape to form what are today seen as dry valleys and gorges.
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