It is the only sanctuary in India officially named after the Hoolock gibbon.
The forest is home to seven different primate species, the highest concentration for any sanctuary in India.
The sanctuary was historically part of the larger Hollongapar Reserve Forest established in 1881.
A portion of the forest was once used for oil extraction, leaving minimal permanent impact on the habitat.
The park features an artificial canopy bridge, built to help gibbons cross the railway line safely.
The sanctuary is physically bordered on three sides by tea gardens, creating a fragmented 'island' ecosystem.
Hollongapar Gibbon Sanctuary is a protected reserve in Assam, India, serving as the primary habitat for the Hoolock gibbon, India's only ape species. Formerly known as the Gibbon Wildlife Sanctuary, the area spans approximately 20.98 square kilometers. The forest is categorized as an 'evergreen forest' and is segmented by the railway track that traverses the reserve. It sustains a high density of primate populations, including seven species like the capped langur and pig-tailed macaque. The sanctuary's flora is dominated by Hollong trees, which provide the high canopy necessary for gibbon movement. Human-wildlife conflict management is a core focus, as the forest is surrounded by tea estates. Researchers and visitors enter the sanctuary to observe the primates in their natural, non-captive environment. The terrain is flat and relatively accessible for walking tours.
The central forest trails offer the best vantage points for spotting gibbons leaping between the high canopy trees.
Hire a local forest guide, as primates are difficult to spot in the dense canopy without expert eyes.
Wear muted-colored clothing to avoid startling the animals.
Carry binoculars for a better view of the high-canopy dwellers.
Do not attempt to feed the primates or use camera flashes, as this disrupts their natural behavior.
The sanctuary may be closed during the peak of the monsoon season due to flooding and impassable trails.
Maintain silence to avoid disturbing wildlife; strictly follow the designated walking trails; no littering allowed.
