Spread across a 236.74 square kilometer area, the Silent Valley National Park is located within the Nilgiri Hills in the Palakkad District of Kerala State in South India. It is one of the last undisturbed tracts of the South Western Ghats montane rain forests and tropical moist evergreen forest in the sub-continent. It is situated at the core of the Nilgiri International Bio-sphere Reserve and part of the proposed Western Ghats World Heritage Site, is in fact a continuation of the Karimpuzha and the Mukurthi National Parks.
This unique sprawling habitat of endangered virgin tropical forests is found to be having a splendid collection of over a 100 species of butterflies and 400 species of moths is captivating, and in fact an irresistible natural paradise.
This extremely fragile unique preserve is home to at least 34 species of mammals including the endangered Lion Tailed Macaque, Nilgiri Langur, Tiger, Leopard, Malabar Giant Squirrel, Nilgiri Tahr, Jungle Cat, Fishing Cat, Common Palm Civet, Stripe Necked Mongoose, Ruddy Mongoose, Wild Boar, Wild Dog, Barking Deer, Mouse Deer, Sloth Bear, Otter, Porcupine, Sambar, Gaur, Elephants, and almost all the animals inhabiting Peninsular India. Around 170 species of birds have been recorded here which include the rare Ceylon Frogmouth, Great Indian Hornbill, Black Crested Baza, Hawk Eagles, Shaheen Falcons, varieties of Owl, Nilgiri Wood Pigeon, Nilgiri Laughing Thrush, Parakeets, Tree pie, Bulbuls .
Coimbatore is the closest Airport at a distance of 65 kilometers from Mukkali, the entry point to the Silent Valley National Park. Palghat Junction (Palakkad) is the nearest Rail-Head at a distance of 60 kilometers from the Park. Mukkali is also comfortably connected by a roadways network with most destinations of this region.