Mouling National Park is a national park located in the Indian state of Arunachal Pradesh, spread primarily over the Upper Siang district and parts of the West Siang and East Siang district. It was the second national park to be created in the state, after Namdapha National Park in 1972. The Mouling National Park and the Dibang Wildlife Sanctuary are located fully or partly within Dihang-Dibang Biosphere Reserve. Name The park is named after the nearby Mouling peak. Mouling is an Adi word which means red poison or red blood, which is believed to be red latex from a tree species found locally. The area is thought to have a large number of poisonous snakes, but this cannot be verified as the ecology of the area has been sparsely explored. Moulíng means (among = soil/land and yalíng = red), from among (mo) yalíng (líng). Therefore, moulíng should be read as red soil. Geography The national park covers an area of about 483 km² forming the western part of the Dihang-Dibang Biosphere Reserve. The terrain is rugged with an altitudinal range of 750 to 3064 m at the highest point, the Mouling Peak. The Siyom River flows along the western fringes of the park and several small rivers such as the Siring, Krobong, Semong and Subong drain into the Siang river near the eastern boundary of the park. The park is under the administrative control of the Divisional Forest Office located in Jengging and the nearest major towns are Along and Pasighat, 130 km and 185 km from the park. Approach to the park is not possible via roads, due to the remoteness of the area and communication facilities in the area are poor. The nearest airfield is located in Along. The Forest Department’s managerial control is limited by the lack of road communication and all the divisional/range/beat offices are located well outside the park. The park boundaries have been drawn through an aerial survey based on artificial and natural boundaries such as the Siyom River in the west, and on-ground demarcation of sections of the boundary is still not complete. The park has two ranges; the Ramsing range accessible from the Bomdo village and the Jengging range accessible from the Lissing village. The area is extremely humid, with heavy rainfall (2343 mm annually) and no well-defined dry season. In low altitude temperature ranges between 15 °C to 38 °C, Winter