6Cuppage, Judith. Archaeological Survey of the Dingle Peninsula: a Description of the Field Antiquities of the Barony of Corca Dhuibhne from the Mesolithic Period to the 17. Century A.D. Ballyferriter: Oidhreacht Chorca Dhuibhne, 1986. 92-94.
The author quotes the fort's excavator as suggesting that the workmen involved in reconstruction work in the 1890's may have mistaken the remains of post-medieval field walls as part of the original rampart, and thus reconstructed the rampart accordingly. The scholars who visited the fort in the nineteenth century all reported the rampart wall as extending in a straight line cliff-to-cliff. In his 1875 Notes on Irish Architecture, Lord Dunraven wrote of Dunbeg, "This great Cyclopean work consists of three ramparts and a massive stone wall, which reaches from cliff to cliff, and cuts off the promontory from
all communication with the mainland." (Dunraven, Edwin Windham Wyndham-Quin. Notes on Irish Architecture By Edwin, Third Earl of Dunraven. Ed. Margaret MacNair Stokes. London: George Bell and Sons, York Street, Covent Garden, 1875. 19.)