EXPLORATIONS ON KOZI GRAMADI PEAK (Ivan Hristov – ivchristov70@abv.bg) The fortress has an area of c. 0.1 ha. Trench No. 1 was close to the northern fortification wall. Fragmentary votive reliefs of the Roman period were found. Trench No. 2 was on the top of the peak. A Late Antique wall dug into an earlier Thracian building was explored. Fragmentary votive reliefs of the Roman period, tiles, Thracian pottery of the 1st millennium BC and two Late Antique coins were found. Trench No. 3 was in the eastern foot of the peak. A big stone block, presumably an altar, is situated close to it. A hoard of 8 Roman republican denarii of the 1st century BC was found inside a cleft in the stone block. Trench No. 4 was close to a buttress from the inner side of the northern fortification wall. Late Antique materials, two coins of the first half of the 3rd century AD and of the 4th century AD and pre-Roman Thracian pottery were found. An entrance, 2.50 m in width, with a threshold and built of ashlars, was discovered in the northwestern corner of the fortification wall, which is 2.50 m in width. Trench No. 5 was on the top of the peak. A wall, 5 m in length and 1.60 m in width, built of ashlars without mortar, was discovered. Presumably, this is part of the Hellenistic fortification wall. The wall was explored at 3 m in length. It has two faces of ashlars with a core structure of small stones. The ashlars are 60 cm in length, 30 cm in height and 17 cm in width. The wall is preserved up to 65 cm in height. Two buttresses were discovered. Sherds of pre-Roman Thracian pottery were found. Trench No. 6 was on the top of the peak. An Early Christian single-nave church, 5.30 m in width, with presumable length of 7.60 m, was explored. Its wall is 60 cm in thickness, built of dry cut stones. A column with a Greek inscription, presumably reused as mensa sacra, was discovered.