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October Surprise 2024

NPS Geodiversity Atlas—Great Smoky Mountains National Park, North …

The park was designated a Biosphere Reserve in 1976 and a World Heritage Site in 1983. Geologic Setting The geology of Great Smoky Mountains National Park consists predominantly of sedimentary rocks that span a wide range of geologic time from the Neoproterozoic Era (1,000–539 million years ago) to the Mississippian (359– 323 million years …