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Keywords from Image Description:
CuyahogaValleyNationalPark geologic map. en CuyahogaValleyNationalPark geologic map CCCleveland Shale Cbe and Cbd Bedford Shale Cb Berea Sandstone QgdPleistocene glacial Geology and Mineral Resources of the Cleveland District Ohio USGS Bulletin Henry Cushing Frank Leverrett Frank Van Horn other versions PDUSGov Cuyahoga Valley