Like nearby Cherbury Camp, it is not clearly in a strategic or easily defended position. It lies halfway down the scarp slope of the White Horse Hills and is tucked away in a curve, invisible from most angles. This particular positioning suggests its builders had a specialist purpose in mind, although exactly what that may have been remains a mystery. It is also surrounded by a double vallum: its dimensions 140 by 180 ft.[3] It is 'multi-vallate', like Cherbury Camp. It is unexcavated and therefore very little is known about it. The site is described as a promontory fort by Historic England, and has been a Scheduled Monument since 1958.[1]
^A Handbook for Travellers in Berks, Bucks, and Oxfordshire: Including a Particular Description of the University and City of Oxford and the Descent of the Thames to Maidenhead and Windsor. London: J. Murray. 1872. p. 52.