Walker, Alfred C.Includes location map.by Alfred C. Walker.Relief shown by contours and spot heights.Scale 1:135,000TIFFhttps://hdl.handle.net/1811/59415154-0e58-4d53-80d8-a6686a3a0a7aengOhio. Department of Natural ResourcesPublicGroundwaterGround-water resources of Jackson and Vinton CountiesMapsOhio--Jackson CountyOhio--Vinton CountyOhioThe Ohio State University