The fortress consists of three large parts. The first part is located at the very bottom, just above the village of Yamchun on the northern edge of the mountain. The entrance gate to the fortress is located here. The second part - the middle part of the fortress, is located on a slope and is fenced on the south and west sides. This area of the fortress prolongs 450 meters from north to south. There are round gates and towers within its walls. The third part of the Yamchun fortress is located at the top, which has a triangular shape. It is also called a citadel where the rulers lived. The fortress was built of stone and brick. In the third part, in certain places, the height of the wall has been preserved up to 9 meters. The fortress has 9 circular checkpoints. The fortress was built on a place where two mountain streams Vichkut and Yamchun flow from both sides.