Udokan

a mountain range in Chita Oblast, RSFSR, and the Yakut ASSR. Measuring about 255 km in length, the Udokan Range rises to an elevation of 2,515 m. It is composed of gneisses and schists and bears traces of ancient glaciation. Up to elevations of 1,200 m, the range is covered with larch forests, and higher up, with mountain and tundra vegetation. The range is the site of the Udokan Ore Region, with extensive copper-ore deposits.