Portsmouth's Mound Park lays claim to the lone remnant of the central complex of the Portsmouth Earthworks that once spread across the Ohio River over the modern communities of Portsmouth Ohio and South Portsmouth and South Shore Kentucky. The history of Mound Park spans over 2000 years of human activity at the mouth of the Scioto River.All that survives today is a horseshoe-shaped mound which was one of a pair that were the focal point of the earthworks complex. Caleb Atwater produced the...