Namdhapa National Park is the 15th Tiger Reserve in the country spread over 1985 sqkm. It is the only National Park in the country where four of the felines i.e. tiger, leopard, snow leopard and clouded leopard are found. Bison, Samber and barking deer and a variety of snakes inhabit the park. Another unique feature of this park is that the park covers a wide range of altitude from 200m to 4500m. The upper reaches remain covered with snow during the major part of the year. The Noa-Dihing River meanders through the forest fed by numerous tributaries and has a rich variety of aquatic life. The National Park is also home to a large variety of butterflies and has more than 150 timber species and some of the rare species of medicinal plants like Mishmi Teeta.