An archaeologist with the First Colony Foundation was on site at Fort Raleigh Saturday with CART engineers testing the advanced ground penetrating system. Their hope is that CART will prove to be a viable tool to help find artifacts from Sir Walter Raleigh's 16th Century colonies in the future.
The First Colony Foundation comprises a team of top archaeologists who in recent years discovered the expanded Jamestown, Va. settlement. The group also is a partner with the National Park Service in search of the Elizabethan presence on Roanoke Island. It has dug its share of holes along Roanoke Sound the past couple of years.
The system they're describing seems to be an advanced GPR system employing several transmitters to get a better 3D image. Their web page describing it is here.