The forest ecosystems of the Rajaji National Park are quite varied and
diverse. A general survey of the forests reveals some important types of
plant associations. The tropical forest ecosystems of the park have many
unique characteristics, which have both scientific as well as practical
significance for development.
Inhabiting the dense green jungles that form the park is an impressive array of creatures - 23 species of mammals - including tigers, leopards, elephants, deer, jungle cat, wild boar and sloth bear - and 315 species of birds are found in Rajaji. The most prominent avian species include pea fowl, woodpeckers, pheasants, kingfishers and barbets, supplemented by a number of migratory species during the winter months. Besides that, the rivers which flow through the park harbour fish such as trout and mahseer. The park has the largest population of Elephants in Uttarakhand. It also has a good number of Tigers and Leopards.
The park is open from 15th November to 15th June.