Silent Valley National Park

Silent Valley National Park, is a national park with a core zone of 236.74km2 . It is located in the Nilgiri Hills, within the Palakkad District of Kerala, South India. This region was explored in 1847 by the botanist Robert Wight, This park is one of the last undisturbed tracts of South Western Ghats mountain rain forests and tropical moist evergreen forest in India. Contiguous with the proposed Karimpuzha National Park to the north and Mukurthi National Park to the north-east, it is the core of the Nilgiri International Biosphere Reserve, and is part of The Nilgiri Sub-Cluster, Western Ghats World Heritage Site, recognised by UNESCO in 2007.Plans for a hydroelectric project that threatened the park's rich wildlife stimulated an environmentalist social movement in the 1970s, known as the Save Silent Valley movement, which resulted in cancellation of the project and creation of the park in 1980. The visitors' centre for the park is at Sairandhri.