The ruins of the fortress are located at the top of one of the south-western branches of Vardenis mountain chain, 2000m above sea level. This high mountain range is edged by the Yeghegis river gorge to the south-east, and Artabuynq river canyon to the north-west. The fortress is protected by a slope and hard-to-reach flanks ,which gradually merge into the area to the north-east.
Smbataberd is one of the largest and most inaccessible fortresses in Vayots Dzor. It was erected in the early medieval period. The Orbelians reinforced and transformed it into a mighty protective fortress. The fortress had been repeatedly besieged during its existence, but always remained inaccessible. The victory over Arab leader Nsr in the beginning of the 10th century is especially worth mentioning.
The fortress was called Smbataberd in the 19th century by the inhabitants of the neighboring villages. The reason was the tombstone of Count Smbat dated 1280 located at the family cemetery of the Orbelians in Yeghegis village. According to some researchers Smbataberd is the Blue fortress mentioned by Stepanos Orbelian. The walls of the fortress are built of dissected and hewn basalt and limestone. The height of the walls exceeds 10m in some places and the width is 3-5 meters. The fortress has three entrances – from the east, that at the end of the 16th century and in the middle of the 17th century Yeghegis was repeatedly destroyed, after which only a few dozen people lived in this once well-developed settlement in the beginning of the 19th century. The village has five hundred residents now.
Multiple cultural and natural monuments are known in the territory of Yeghegis. Armenia’s deepest river valley 1200 meters deep Yeghegis gorge is here. The largest delluvial fans of the Republic of Armenia are situated exactly in this territory. The latter are located at the northern foot of mount Teqsar. The northern slope of Teqsar is nearly deprived of permanent water streams, and is partitioned by ravines and gullies, over which the weathered rocks slide due to gravitation. They have formed huge delluvial fans at the foot of the mountain range. The delluvial fans joining together have formed a delluvial train of large rock blocks and crushed stones.