Golden langur (Trachypithecus geei) was first
sighted in Kokrajhar district in the year 1953
near Jam Duar of Raimona Forest Range ( Ripu Reserve
Forest) by Mr. E.P. Gee, a naturalist. The word
'langur' is derived from the Sanskrit word 'langulin'
meaning long tail.
The natural habitat of the Golden langur is between
the river Sankosh and Manas along the marginal
part of the foothills of eastern Himalayas. The
extended habitat of this animal is the Chakrasila
Wildlife Sanctuary near Kokrajhar.
The Golden langur is now endemic to the above
habitat and is a critically endangered species.
It is also included in the Schedule-I of the Wildlife