Hoollongapar Gibbon Sanctuary was created in 1997.
The area of Hoollongapar Gibbon Sanctuary is 20.986 square kilometers.
no. Hoolak Gibbons are found in the north eastern India. The Gibbon Wildlife sanctuary in Jorhat district of Assam has been declared mainly for the conservation of Hoolak Gibbon
Silvery gibbon was created in 1798.
Kloss's gibbon was created in 1903.
Lar gibbon was created in 1771.
Pileated gibbon was created in 1861.
Müller's Bornean gibbon was created in 1841.
Western hoolock gibbon was created in 1834.
Eastern hoolock gibbon was created in 2005.
Yellow-cheeked gibbon was created in 1909.
Black crested gibbon was created in 1826.
Gyzyljar Sanctuary was created in 1956.