Altai

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Altai Mountain system in central Asia, stretching from Kazakstan into n China and w Mongolia, and from s Siberia to the Gobi Desert. A densely forested area, it is the source of the Irtyš and Ob rivers. The average height is 2000–3000m (6500–10,000ft), and the highest peak is Mount Belukha, on the Kazakstan-Russia border, at 4506m (14,783ft).

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