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Blue Hole Falls, Duck River, Old Stone Fort State Archaeological Park, Coffee County, Tennessee 1 | by Alan Cressler
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Blue Hole Falls, Duck River, Old Stone Fort State Archaeological Park, Coffee County, Tennessee 1

Blue Hole Falls is developed on river-wide chert ledges of Mississippian age, Fort Payne Formation. For more information: tin.er.usgs.gov/geology/state/sgmc-unit.php?unit=TNMfp%3B10

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Taken on February 5, 2012