Highbury Hill is the site of the earthwork remains of an Iron Age univallate hillfort. It occupies an area of woodland at the end of a narrow ridge. It is a Scheduled Ancient Monument. The site lies in an area of woodland at the south eastern end of a narrow ridge with steep slopes around it. There is a outer bank which is long with a shallow wide ditch. Some Roman silver coins were found at the site in the late 18th century.