Map of Clinton County, Ohio - Public domain old map

"Entered according to Act of Congress in the year 1858 by HF Walling in the clerks office of the District Court of the United States for the Southern District of New York."
LC Land ownership maps, 608
Available also through the Library of Congress Web site as a raster image.
Includes insets Sligo (Adams), New Burlington (Chester), Reesville (Richland), Cuba (Washington), Martinsville (Clark), Lumberton (Liberty), Port William (Liberty), Westborough (Jefferson), Gurneyville (Liberty & Union), Bloomington (Wilson), Blanchester (Marion), Sabina (Richland), Centreville (Wayne), Burtonville (Union), New Vienna (Green), Clarksville (Vernon), and Wilmington (Union).