Friday, June 3, 2011

Green's Bluff

Green’s Bluff is a preserve owned by The Nature Conservancy -- its a large wooded riparian habitat with uplands, ravines, steep cliffs, karst features, hemlock forest and floodplain forest. What's a bluff you ask? A very steep and broad hill or small cliff, frequently next to a river or ocean (in this case, river). What the heck are karst features? A karst is a geologic formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite. Many karst regions have distinctive surface features, with sinkholes or depressions. And apparently its fairly common in this area of Southern Indiana.  The topography maps for some of our sites look really strange.

Ok, enough geography and geology for one day. Look at the pretty flower!

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