Description: Rock Island State Park, Tennessee. Twin Falls, a cascade waterfall that spills down from an underground cavern . The waterfall was created by the Great Falls Dam, which caused the Collins River to rise. The rising waters began seeping into underground caverns on Rock Island's south shore and exiting at the falls on the north shore.
Uploaded on 10/9/2012 2:24:40 AM
Made with Nikon D5100
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© Kim Lund
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