Tolbo
Tolbo is a sum of Bayan-Ölgii Province in western Mongolia. It is primarily inhabited by ethnic Kazakhs. As of 2021 it had a population of 8,372 people.
A large saline lake, Tolbo Lake, is located in the district, just north of the sum center. The lake was the site of the Battle of Tolbo Lake during the Russian [Civil War] where Bolsheviks and Mongolian allies defeated an army of White Russians.