EXPLORATIONS NEAR SUVOROVO (Petar Zidarov – petar.zidarov@gmail.com, Vladimir Slavchev) The settlement was situated on a slope at the bank of Cherna Voda River. Parts of four houses of the Chalcolithic period were explored in 1983. In 1989 – 1990, sectors in the central part of the settlement were explored and at least eight buildings and two midden pits were partly excavated. The walls of the building were constructed over stone plinths. All the buildings explored were burned and the wattle-and-daub of their walls was fired. A monumental stone fortification wall surrounding the settlement was documented. The wall was 3 m wide and c. 100 m in diameter. Seven rows of buildings were probably situated in the protected area surrounded by the wall. The discovered material dated to the Middle Chalcolithic period and belonged to Phase IV of the Sava and the Hamangia Cultures. In 2010, a geomagnetic survey was carried out on an area of 13,375 sq. m. During the mapping of the magnetic anomalies, rows of checkerboard of zones with quadrangular and oval layouts were documented. Most of these were probably the remains of burned buildings. The possible layout of the fortification stone wall was probably related to the arc-like zone documented during the geomagnetic survey, which surrounded the settlement from its northern side.