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Highbanks
Lewis Center, Ohio. Highbanks is named for its massive 100-foot-high shale bluff towering over the Olentangy State Scenic River. Tributary streams cutting across the bluff have created a number of deep ravines in the eastern part of the 1,160-acre park. Ohio and Olentangy shales, often containing outstanding large concretions, are exposed on the bluff face and sides of the ravines.