We started the excavations on the trench AB 4, which is on the east slope of the Aragatsi Berd hill. It has south-east and north west position, and 10x3 m dimensions. The trench was devided to two parts, and we are continuing the work in the south-east one, which was excavated during 2006-2008 years. The first day we started the cleaning of the trench, as it was full of stones and soil, which is result of conservation. We started the work with 3 workers.