Altai mountains, Siberia

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 Southern Siberian Altai mountains are mountains of western Siberia biogeographic region. This region is the most complete sequence of vegetation zones in Siberia, begun from the pasture, forest, mixed forest, subalpine vegetation to alpine vegetation. This site is also an important habitat for rare animal species like snow leopard. From the last century, temperatures in this area continues to increase, and researchers that in the coming decades will threaten the unique ecological system.

The Altai region of southern Siberia is a place of geological wonders and rare biological diversity. The name Altai comes from the Mongolian word for 'gold' and 'mountains,' an apt moniker considering the ecological value of this UNESCO World Heritage site. Gold was also the colour of the trees and grasses during photographer Andrew Kudrin's visit in Autumn 2011, which resulted in these stunning photographs.

The Altai is the source for Siberia's two major rivers, the Ob and the Irtysh. It lies on the boundary between north and central Asia, is divided by four countries, and encompasses terrain, from high mountain ranges down to grassy steppes.