Buguzun is a mountain pass on the border of the Altai Republic and Tyva in the southern part of the Chikhachev Range.
The pass is named after the river that starts nearby. Buguzun - lit. ‘mighty, huge river’.
The road through the Buguzun Pass connects the Kosh-Agach district of the Altai Republic and Mongun-Taiginsky kozhun of the Tyva Republic. To date, the pass and the road have no hard surface and are practically not maintained by road services.