Coflein site includes several aerial photos of the fort.
Thurba Camp is a defensive complex set about a central enclosure c.50m by 40m perched on an irregular coastal promontory, defined by precipitous cliffs except where a stone-faced wall/rampart faces NE across the promontory isthmus, with two widely spaced lines of bank & ditch beyond , the outer having a c.90m frontage.
Up to seven circular structures have been noted associated with the central enclosure, although the site as a whole is obscurred by lime workings.