Dilijan town lies on the banks of
Aghstev River with a length of more than
20 km and at a height of 1500 m above sea level. The valley is surrounded
with the Lesser Caucasus mountains from the north, and the Semyonovka mountain
pass from the south. The mountainous areas are all covered with thick forests
which occupy a territory of more than 34,000 hectares. Reaching the highest
peaks of the mountains, the forests turn to Alpine meadows. In addition to Aghsdev River, two more streams are flowing
through Dilijan, Golovinka and Dilijanka rivers