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Landowner partnerships have helped stop sedimentation of streams entering karst areas inhabited by the endangered Ozark cave snail.— ENS
The term "karst" -- a limestone region of underground rivers, gorges, and caves -- originated in Slovenia's Karst plateau between Ljubljana and the Italian border.
But Zhou warned the country's rapid development and worsening pollution could threaten many biologically rich areas like the karst - a network of limestone sinkholes marked by underground streams and caverns - before further discoveries are made.— The Jakarta Post Breaking News
Anyway, it is really nice here - a very old tropical rainforest and limestone (karst) mountains (the tallest 961 metres - ok, not that tall but it is limestone).— TravelPod.com Recent Updates

American Heritage Dictionary (1)
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