The tallest mountain is the Otgontenger (lit. "
youngest sky"), the height of which is given as 3,905, 4,021, and 4,031 m depending on the source.
It is one of the four paramount sacred mountains of Mongolia.
State ceremonies are held there.

Suvraga Khairkhan (Stupa Khairkhan, height 3,117m) is another sacred mountain to the east of Tsetserleg.

Taryatu-Chulutu is an extinct volcanic field on the northern slopes of the Khangai Mountains.

The mountains feed the rivers Orkhon, Selenge, Ider, Zavkhan and the lakes Orog and Böön tsagaan.
In the west the Khangai mountains transition into the Great Lakes Depression.

The Khangai mountain region is known for its mild microclimates in certain areas.
Winters there are not as harsh as in other parts of the country.
As noted in Brzezniak and Niedzwiedz's "Vertical Variability of Climatic Conditions in the Khangai Mountains" p. 34:
Because of strong winter inversions which have become known as a singularity of the mesoclimate of Mongolia (Gavrilova 1974) the Khangai tends to be some 10°C warmer than the surrounding areas.
It is likely that even the highest mountain tops are some 5°C warmer than the sub-Khangai basins.
The tallest mountain is the Otgontenger (lit. "youngest sky"), the height of which is given as 3,905, 4,021, and 4,031 m depending on the source. It is one of the four paramount sacred mountains of Mongolia. State ceremonies are held there.
Suvraga Khairkhan (Stupa Khairkhan, height 3,117m) is another sacred mountain to the east of Tsetserleg.
Taryatu-Chulutu is an extinct volcanic field on the northern slopes of the Khangai Mountains.
The mountains feed the rivers Orkhon, Selenge, Ider, Zavkhan and the lakes Orog and Böön tsagaan. In the west the Khangai mountains transition into the Great Lakes Depression.
The Khangai mountain region is known for its mild microclimates in certain areas. Winters there are not as harsh as in other parts of the country. As noted in Brzezniak and Niedzwiedz's "Vertical Variability of Climatic Conditions in the Khangai Mountains" p. 34:
Because of strong winter inversions which have become known as a singularity of the mesoclimate of Mongolia (Gavrilova 1974) the Khangai tends to be some 10°C warmer than the surrounding areas. It is likely that even the highest mountain tops are some 5°C warmer than the sub-Khangai basins.
Khangai Mountains