Leon Sinks
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The Leon Sinks Geological Area is located in southern and southwestern Leon County, Florida, United States. It's a mature karstic area on the Upper Floridan Aquifer. It is one of the most extensive underwater cave systems in the world and connects to Wakulla Springs.
This hydrological system is extremely vulnerable to pollution because of the very high permeability of the carbonate aquifer. Extensive mapping and exploration of these caves has been done by the Woodville Karst Plain Project to understand the complex dynamics of the area and to understand the proper ecological approach to keeping this system clean.