Silent Valley National Park is one of the few remaining pristine forest areas in the Western Ghats. The park is called Silent Valley because the loud calls of Cicadas heard elsewhere in this region are not heard here. Silent Valley has an amazing range of wildlife. Tigers, deer, and mammals native to the South Indian Peninsula, such as the Nilgiri Langur, Malabar Giant Squirrel, Lion-Tailed Macaque, Flying squirrel and Civet Cat are found in Silent Valley National Park. One can enjoy observing these rare animals and many more during the trekking in Silent Valley National Park.
It is also called as Sairandhrivanam (the forest in the valley). The park which is remote has difficult terrain and is surrounded with Attappadi Reserve Forests in the east, and vested forests of the Palghat and Nilambur divisions in the west and south. In the North, the park is an extension of the Ni