The park was once known as the "Old Bed" of the River, or the "Island", because the old Marietta and Cincinnati Railroad (now the Baltimore and Ohio) built an embankment to redirect the Scioto River, leaving a marshy river bed with an island left in the center where the river once flowed through the park. For twenty years afterwards Chillicotheans attributed the chills and fever and the shaking ague to the overgrowth in the park, and every epidemic of malaria was attributed to the area, considered a plague spot.