AP NEWS

Archaeologists to map massive Charleston wall built in 1758

February 9, 2020 GMT

CHARLESTON, S.C. (AP) — College students are going to help archaeologists map the walls used to defend Charleston more than 250 years ago.

Students from Clemson University and the College of Charleston will use ground penetrating radar in downtown Charleston’s Marion Square to find exactly where the fortification called the Hornwork was built, the American Battlefield Trust said.

The 30-foot (9-meter) tall wall built in 1758 stretched for three city blocks and also had a ditch or moat. The wall was made from tabby, which was a mix of seashells, sand and lime, the organization said.

The Hornwork played a vital part in Charleston’s defense over the next several decades, including during the British siege of the city in 1780 during the Revolutionary War.

Some of the wall remains visible in Marion Square, and archaeologists have an approximate location of the fortifications, but the radar will help pinpoint exactly where it was built.

The work by students over February and March will be used to create an augmented reality program that allows visitors to see the Hornwork, Jim Lighthizer, president of the American Battlefield Trust, said in a statement.

The work will also help historians and others figure out exactly how the defenses were planned and built, Charleston County Public Library historian Nic Butler said.