The Khangai Mountains stretch over 750 kilometres from west to south-east in central portion of Mongolia. The highest summit in the range is the Otgon Tenger Uul at 4'008 metres. It was first climbed in the year 1955 by a Mongolian expedition.
Other major summits of the range are known as Büren Khairkhan, Sogoo Khairkhan , Gurvan Angarkhan (second highest mountain of the Khangai) and the Suvarga Khairkhan (3'170 m).
Mongolia 1982, Changai Mountains.
Mongolia 1994, First President of Mongolia.
(Mongolian President 1990 – 1997)
Mongolia 2007, Mongolian Mountain Otgontenger (4'008 m) and Mt. Fuji (3'776 m), Japan.
(35 years diplomatic relations)
Mongolia 2010, Otgon Tenger (4'008 m).
The stamp was issued in the series "mountains".
Mongolia 2018, Otgon Tenger.
The stamp was issued in the series "Landscapes of Mongolia".