Best geological formations in South Dakota

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South Dakota geological features

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    Badlands Wall , Badlands National Park
    Stretching along some 100 km (60 mi) of dry plains, Badlands Wall poses as a natural rock barrier that's been eroding for tens of millions of
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    Situated among pointed geological formations that resemble needles and spires, Needles Eye Tunnel is the main attraction along Needles Highwa
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    Big Badlands Overlook , Badlands National Park
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    Yellow Mounds Overlook , Badlands National Park
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    Black Hills , South Dakota
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