ARCHAEOLOGICAL EXPLORATIONS OF THE NORTHERN FORTIFICATION WALL OF DUROSTORUM (Ivan Bachvarov – museumsilistra@abv.bg, Dragomira Boeva) A construction of stones was unearthed during the excavation works for building the ‘Drastar’ Hotel in Silistra. During the rescue excavations, a fortification wall built of ashlars bonded with mortar, 4.45 m in width, with a plinth 1.90 m in height, was discovered. The wall has outer and inner faces, with a core of cut and uneven stones bonded with mortar. Some spolia (a fragment of a frieze–architrave and other architectural details) were reused in the wall. The foundation consists of uneven stones and is dug at 1.20 m in depth. The wall is east – west oriented. It is discovered at 15.50 m in length. The total preserved height of the wall, from its foundation to the highest course, is 4.45 m. Two sondages were carried out to the north and to the south of the wall, in order the foundation of the structure to be explored. A destruction level of bricks was discovered to the south of the wall. Traces of craft activities (melted glass and slag) and pottery of the 3rd – 4th centuries AD were found to the south of the wall.