The mountainous regions of the Kangchenjunga Himalayas form part of the 850 sq.km. Khangchenjunga National Park, situated in North district of Sikkim bordering Nepal. The park comprises of wet temperate forests at the lower levels, rising to bare rock, ice and snow of the peaks. The variation of altitude and vegetation has enriched the park area with a rich variety of flora and fauna. The temperate forests are dominated by Quercus spp., Schima spp., Castanopsis spp., Acer spp., Betula spp., Himalayan Larch etc. Tha park has about 454 types of orchid, over 600 species of butterflies, 550 species of birds, clouded leopards, snow leopards, tahr, musk deer, red panda and bintorong. There are many glaciers in the park area, amongst them the Zemu glacier, the largest in the eastern Himalayas.
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