Location: Ohio         Length: 6 min

Magnetometer survey by Dr. Jarrod Burks in Ohio relocates part of the 1000 foot wide Shriver Circle, a now invisible Woodland Period (300 B.C. – A.D. 500) earthworks feature, suggesting that remote sensing can revolutionize our understanding of Ohio earthworks. Most of these have been plowed down over the years, but geophysical detection can make them visible. This approach may open up a whole new chapter in the investigation of the ancient cultures who built the earthworks.

Produced in 2011 by the U.S. National Park Service

Copyright 2011 by the U.S. National Park Service

Detecting the Shriver Circle Earthwork, Ross County, Ohio (Jennifer Pederson and Jarrod Burks, Hopewell Culture National Historical Park, National Park Service)

Hopewell Culture (Ohio History Central)

Hopewell Culture National Historical Park (National Park Service)

Hopewell Tradition (Wikipedia)