In Columbus OH is Campbell Park, which houses the Shrum Indian Burial Mound. The mound is from the Adena culture of Native Americans, who regularly buried their high-status dead in artificial earthen mounds located along rivers. There used to be a number of these mounds in Columbus along the Scioto River, but a series of quarries eventually destroyed all but one of them. The Shrum is the only survivor.
Here are some photos from a visit to the site: