1993, 85-90
Manas is located in a lower strip at the foot of Bhutan Himalayas in a linear strip extending east-west and falling partly under the civil district of Barpeta and Kokrajhar. Manas extends over 500 km2 from Alabari River in the east to Sukanjan River in west. Northern boundary between india and Bhutan, and southern boundary is formed by artificially demarcated line of forest road. Extended area includes Panbari, Kahitama, Kokibara Forest Reserves.
1964, All forestry operations in the area, carried out in 1940's and 1950's were all stopped.
Formerly the rhinos of Manas formed part of the population occupying higher reaches of the valley extending west through Manas Reserved Forest, Chirang Reserved Forest, Ripu Reserved Forest to Buxa Reserved Forest and Jaldapara in Bengal. The rhino were pushed out by human settlements and cultivation.
1990, Declared a National Park.