EXPLORATIONS IN DUPNITSA (SlavyankaNikolova – hmuseum_dtsa@mail.bg, Sergey Ustinov) Thirteen pits were discovered in Sector I, 12 of them dated to the Late Antiquity. Part of the pits were related to building activities, others were storage pits. The burned Early Iron Age building was partly explored with preserved size of 9 m by 4.10 m. Chalcolithic sherds were found, accidentally occurring in the Early Iron Age stratum and in the Late Antique pits. A section of the fortification wall, 6.70 m long, was discovered in Sector IVA in the southeastern part of the fortress. The wall was 65 cm wide, preserved up to 1.40 m in height. A layer with traces from fire was documented and the finds included roof-tiles, sherds, iron nails, a hammer-pick and a small terracotta lid. A Christian burial of a child was discovered in the fortress, close to the threshold of the second entrance, probably dated to the 11th – 12th century. A bronze coin, probably of Arcadius, was discovered close to the entrance of the fortress and another bronze coin of Justin I was found close to the fortification wall. The explorations of Rooms Nos. 1 and 2 located close to the fortification wall continued in Sector V. Room No. 1 was 6.90 m by 3.15 m in size, with walls constructed of roughly-cut stones and boulders bonded with mud, 65 cm wide, and an entrance 1.80 m wide. A layer with traces from fire was documented in the room and three dolia were discovered, while the finds included pottery, fragments from two small glass spoons, a small glass cup, a coin of Licinius I, iron knives, a handle, latches, sickles, hooks, a plough, a lead weight of 1880 gr and whetstones. The room was probably a storage in the ground floor of a house that was built close to the fortification wall. A second dolium, dug out into the ground and covered with a circular stone lid, was discovered close to the dolium found in 2010 close to the fortification wall. Room No. 2 measured 4 m by 2.70 m, with walls 70cm wide.