These sandy hills are very similar to the sand dunes along the Atlantic Ocean. Wind and water formed both areas. For much of its geologic history, Florida has been underwater. Climatic changes have caused wide-ranging movement of Florida's coastline. Between the ice ages approximately 2 million years ago, the sea level was higher and a central ridge was all that was left above water. These sandy hills are the remains of dunes that formed along that ancient coastline.

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