The fort, also known as Fort Prince Frederick, is believed to be the oldest tabby structure in the state. Provincial scout boats were stationed here periodically. A relatively small fort, it measures 125 feet by 75 feet with an obvious bastion on the southwest side. The eastern wall was lined with a battery and cannon. The interior of the fort held a barracks and a magazine and was garrisoned by an independent company of British regulars until their transfer to Georgia in 1736.
The preserve is located on the grounds of the Beaufort Naval Hospital. Public access is not permitted except for pre-arranged tours through the South Carolina Department of Natural Resources at 803-734-3893.