ARCHAEOLOGICAL EXPLORATIONS AT TEGULITIUM (Georgi Atanasov – geoatal@abv.bg, Ivan Bachvarov) Explorations in Tegulitium were carried out in 1915 and 1982 – 1984. It was discovered that the fortress was occupied from the Thracian period (second half of the 1st millennium BC) to the Late Mediaeval period (mid 15th century). In 2006, Sites B and E were explored in front of the fortress. Site B is a building. Its western wall is entirely preserved, while its northern and southern walls are partly preserved. The western wall, built in opus mixtum, is 6.28 m in length, 64 cm in width, and preserved up to 92 cm in height. A pilaster was additionally built in the middle of the wall, from its outer side. There are pilasters interconnected with the structure of the wall in the northwestern and southwestern corners of the building. The northern wall, 62 cm in width, is preserved at 2.30 m in length. The southern wall is 58 cm in width and only its corner is preserved. The floor of the building was covered with stone slabs. The foundations of the building are 80 cm in width and 3.20 m in depth, and are built of uneven stones bonded with mortar. The building was destroyed by fire during the second half of the 4th century AD, dated by three coins minted by Constantius II and Valens. The building ceramics and the pottery date to the 2nd – 4th centuries AD. There are several sherds of grey-black pottery, which may be related to the presence of the Goths at the end of the 4th century AD. Two fibulae of the 3rd – 4th centuries AD were also found. Two parallel walls built of stones bonded with mortar were partly explored on Site E. They are 78 cm in width and the distance between them is 4.85 m. The pottery found on Site E dates to the 3rd – 6th centuries AD and to the 9th – 11th centuries.