The Robert L. Harness Lecture Series. Hopewell Culture National Historical Park is pleased to host the summer archeological lecture series.

Ohio is loaded with ancient earthworks, most built by Native Americans about 2000 years ago. Some 600 of these sites are known or thought to exist, but many have been “lost” since the 19th century. In the last several years, several of these lost earthwork sites have been relocated and a number of new sites have been found. In this presentation we will explore new and relocated sites from the Hocking and Scioto River valleys using aerial photographs, magnetic survey data, and LiDAR 3D topographic mapping. The continued discovery of new earthwork sites suggests that there are many more earthworks around us than we ever thought possible!