SEIP EARTHWORKS HOPEWELL CULTURE NATIONAL HISTORICAL PARK
 
Seip Mound is the central mound in a group of geometric                earthworks. Farming and erosion have degraded the                surrounding earthworks leaving the central mound an         outstanding feature. It is 240 feet long, 130 feet wide, and 30 feet high. 
         Excavations have revealed that prehistoric Indian buildings existed near the         earthworks. Today, visitors can see the location of some of these buildings         as they are outlined by short posts in the ground. The Hopewell Indians         (100 BC-AD 500) built Seip Mound for burials. This culture had a highly         developed craft industry, as is evidenced by artifacts found with bodies in         the burial site.