Nepal has vast sources of fresh water river which flows from high mountains of north to southern plain. This river collect all minerals rich fertile soil to this plain which helps to develop good environment for plants. In addition, humid and hot weather helps to create more dense forest in this plain. Large parts of this plain is covered with dense forest and vegetation. Many flora fauna and wild life flourish in this dense jungle. This dense forest are protected by creating parks and reserves. It is looked after by government and international organization. 16% of Nepal total land is covered by reserves and conservation areas.
Chitwan National is one of the National parks created for protecting this diversity of the region. It was established in 1973 AD. It has wide range of flora and fauna. Wild life is key attraction to this region. It is home to many wild mammals including one-horned Rhino, Royal Bengal Tiger, Wild Elephant, Deer, Wild Boar, leopard, bison, jackal and many more. Gharial Crocodile is important wild species of many reptiles found in the region. Many birds are also use this reserves as their homes. Migratory birds are also seen in the region.