The Dehing Patkai Wildlife Sanctuary, also known as the Jeypore Rainforest is a part of Dehing Patkai Elephant Reserve . It is located in the districts of Dibrugarh and Tinsukia. Dehing Patkai is a deciduous rainforest interspersed with semi-evergreen and lush green flora, the only patch of virgin rainforest in Assam. It comprises of Jeypore, Upper Dehing and Dirok. Dehing is the name of the river that flows through this forest and Patkai is the hill at the foot of which the sanctuary lies. The Wildlife Sanctuary is endowed with  rich bio-diversity. The dense forest with unique vegetation is mesmerizing