Ohio Brush Creek rises in southeastern Highland County, and flows generally southwardly into Adams County, past the 1348 ft -long, three-foot-high prehistoric effigy mound on a plateau of the which crater, along Ohio Brush Creek in Adams County, Ohio?
Serpent Mound The Great Serpent Mound is a 1348 ft -long, three-foot-high prehistoric effigy mound on a plateau of the Serpent Mound crater along Ohio Brush Creek in Adams County, Ohio. Maintained within a park by the Ohio History Connection, it has been designated a National Historic Landmark by the United States Department of Interior. The Serpent Mound of Ohio was first reported from surveys by Ephraim Squire and Edwin Davis in their historic volume "Ancient Monuments of the Mississippi Valley", published in 1848 by the newly founded Smithsonian Museum.
Big Walnut Creek Big Walnut Creek starts near Mount Gilead, Ohio in Morrow County. It flows south to eastern Delaware County and parallels Alum Creek. It passes to the east of Sunbury and into Hoover Reservoir. The reservoir crosses into Franklin County and flows through Gahanna and Whitehall. Near Obetz it is joined by its principal tributaries Alum Creek and Blacklick Creek at the Three Creeks Columbus Metro Park. It flows through southern Franklin County and joins the Scioto River near the Franklin-Pickaway Counties line at .