Iolgo

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Iolgo

 

a mountain range in the Northern Altai in the Gorno-Altai Autonomous Oblast; the water divide of the Biia and Katun’ rivers. Length, 90 km; maximum elevation, 2,615 m (Mount Al’bagan).

The Iolgo Range is composed of limestones, sandstones, shales of the Lower Paleozoic, and tuffaceous rocks of the Middle Paleozoic with granite faults. Middle-altitude mountain relief dominates. The eastern slopes are covered by taiga with spruce, fir, and cedar; the western slopes have forests with birch, pine, and larch. Alpine and subalpine meadows, alpine tundra, and rock streams are found above 1,700 m.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.