Belukha

Belukha Mountain (; Russian: Белуха, IPA:, also known as Beluga Mountain, Icemount Peak, or The Three Peaks, is the highest peak of the Altai Mountains in Russia and the highest of the South Siberian Mountains system. It is part of the Golden Mountains of Altai World Heritage Site.

Since 2008, one is required to apply for a special border zone permit in order to be allowed into the area. Foreigners should apply for the permit to their regional FSB border guard office two months before the planned date.

Source: Wikipedia