On the western edge of Worthington, close to the Olentangy River, Jeffers Mound is a Hopewell tradition burial mound dating to roughly 100 BCE–500 CE. It is one of the few surviving examples of Hopewell earthworks in the Columbus metropolitan area — a reminder that the landscape of central Ohio was substantially shaped by Indigenous peoples long before European settlement.
The mound stands about five metres tall and is preserved in a small park setting. It is not an elaborate site — there are no interpretive facilities on par with the Newark Earthworks or Mound City — but it is accessible and free, and for anyone interested in Ohio's pre-contact history it is worth the short detour. The surrounding park along the Olentangy is pleasant for a short walk.