Mongolia is 2240 meters above sea level. The Khorgo area has amazing rock formations, gorges and gorges, and many caves and hollows. The width of the Khorgo basin is 200 meters, the depth is 70-80 meters, and the slope is 30-36 degrees. It grows in cedar and larch forests on the back and sides and is abundant with flowers and fruits. This beautiful area has been protected by the state since 1965 as a nature reserve and in 1994 as a natural park. It is a volcano that erupted about 9,000 years ago and went extinct. The hot molten magma that erupted from Khorgo mountain flowed hundreds of kilometers down the ground to the east through the Suman and Chuluut river valleys. Scientists have speculated that the magma that flowed through this route through a 10-20 kilometer wide valley may have frozen into a 40-50 meter thick stone pavement. It is also said that Mount Khorgo erupted twice. The mouth of the crater has a circular shape with a slope of about 50 degrees, a depth of about 100 meters, and a diameter of 300-400 meters. It is difficult to walk because there are large rocks like chairs and tables inside the crater. You can enter the crater only from the right side, very carefully. About six kilometers south of Khorgo Mountain, on the left bank of the Suman River, and about 3 kilometers southwest of the center of Tariat bullet, there is an interesting sight called a stone house. While boiling and flowing, the foam of hot molten magma cracked and formed the “Toono” and “door” of a 170-centimeter -high stone house. Such stone houses are not found in any of our other extinct volcanoes. About 20 kilometers from Mount Khorgo, there are three extinct volcanoes: Bosgyn, Khyaryn, and Sugy craters. Bosgo Crater is rifted to the northwest,- but has a lake at the bottom. In addition to Khorgo Crater, there are 33 volcanoes such as Gichgeni West-East Crater, Ul’in Crater, Tsagaan Uul, Zalaa Tolgoi, Mandli Crater, and Shavry Karam. The Suman, Gichgene, and Chuluut flow through them with a high rate of river.