For the technically inclined, the hillfort can be best described as univallate, with a ploughed interior.
The rampart is also slightly unusual, being not one, but two walls of earth. It has a low rise of about five feet on the outside, dropping down ten feet, before rising again to twenty feet at the peak of the inner rampart. Three series of excavations on the site have unearthed a variety of pottery finds.
Situated next to Membury airfield, the fort commands a good view to the west and south, and is within hearing range of the motorway, to the north.