The Potanin Glacier is the longest glacier in Mongolia, it stretches about 14 kilometres and located through in the Altai Tavan Bogd mountain in Altai Mountains.

[1] The glacier is named after explorer Grigory Potanin.

Over a 6-year period of observation, September 2003 to September 2009, it retreated by about 90 meters, thus recording an average retreat rate of 15 m/year.

It also has become thinner, especially in its lower parts; the average thinning rate of 2.6 m/year has been measured over 2004–2009.

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