It is located on the Himalayan Mountain Range in north part of the country and is 2,730.76 sq km in extent. It is very mountainous with rugged terrain and fast-flowing streams and
incorporates
Mt. Hponkan Razi (3,485m, snow-capped mountain). It is land locked with no transportation except by footpath. But it is not difficult and only soft trek. Vegetation is primarily hill evergreen forest, which has Red Goal, Barking Deer, Gibbon and various mammal species.
322 bird species have been recorded include waterfowl and mountain birds in this sanctuary. The highlight would be Blyth's Tragopan, Temminck's Tragopan,
Sclater's Monal, Rufous-necked Hornbill, Blyth's Kingfisher, Ibisbill, White-bellied Heron, Silver-breasted Broadbill,
Long-tailed Broadbill, Spotted Nutcracker, Golden Bush Robin, White-crowned Bush Robin, Rufous-breasted Bush Robin, Rusty-bellied Shortwing,
Spotted Forktail, Red-throated Thrush, Rufous-tailed Thrush, Beautiful Nuthatch, Coal Tit, Yellow-cheeked Tit,
Yellow-browed Tit, Chestnut-headed Tesia, Grey-bellied Tesia, Slaty-bellied
Tesia, Hill Prinia, Brownish-flanked Bush Warbler, Russet Bush Warbler, Ashy-throated Warbler, White-spectacled Warbler, Grey-hooded Warbler, Black-faced Warbler,
Chestnut-backed Laughingthrush, Rufous-chinned Laughingthrush, Black-faced Laughingthrush, Rufous-necked Laughingthrush, Rufous-vented Laughingthrush,
Red-billed Scimitar Babbler, Coral-billed Scimitar Babbler, Scaly-breasted Wren Babbler, Spotted
Wren Babbler, Snowy-throated Babbler, Green Shrike Babbler, Black-eared Shrike Babbler, Red-faced Leiothrix,
Streak-throated Fulvetta, Nepal Fulvetta, White-naped Yuhina,
Fire-tailed Myzornis, Grey-headed Parrotbill, Lesser Rufous-headed Parrotbill, Greater Rufous-headed Parrotbill, Scarlet Finch, Plain Mountain Finch, Black-headed Greenfinch, Red Crossbill, Grey-headed Bullfinch and Yellow-throated Bunting.
In addition one can make observation of butterfly, insect, plant and orchid, do adventure and trekking to Mt. Hponkan Razi (3,506m, snow capped mountain), and study of traditional culture, custom and system of living of the hill tribes such as Kachin, Rawan, Lisu and Myanmar-Tibet.
The best time to go is during November to April.
