The Orang National Park located on the north bank of the Brahmaputra River in the Darrang and Sonitpur districts of Assam. It was established as a sanctuary in 1985 and declared a National Park on 13 April 1999. It is also known as the mini Kaziranga National Park. The park has a rich flora and fauna, including Great Indian One-Horned Rhinoceros, pigmy hog, elephants, wild buffalo and tigers. It is the only stronghold of rhinoceros on the north bank of the Brahmaputra river.