Guy, Donald E.Description based on 52.Includes both texts and maps.Ohio Division of Geological Survey.TIFFhttps://hdl.handle.net/1811/1df29e83-05c9-4778-b451-c4c05f0c9912engOhio. Division of Geological SurveyPublicGeologyShore Recession Lines, Ottawa County, Sheet 1MapsOhioThe Ohio State University