The Eravikulam National Park (15 kms from Munnar) is situated in the Devikulam Taluk of the Idukki District. It lures the travellers with its irresistible grace and beauty. The 97 sq km park lies along the high ranges of the western coast in the Munnar Forest Division of Idukki district in Kerala. It is situated on the border of Kerala and Tamil Nadu in the north where it extends as the Annamalai National Park. The mountains covered with the rolling grasslands and high level sholas is breath-takingly beautiful. This park was established to protect the Nilgiri Tahr also known as the Nilgiri Ibex. The Rajamala is the natural habitat of this rare mountain goat. Half the world population of the endangered Nilgiri Tahr (Hemitragas hylocres) lives here. (Around 1317, according to the 1991 census). Besides the Nilgiri tahr other important fauna are elephant, leopard, tiger, malabar civet, sambar, barking deer, nilgai, langur, phyhon etc. The birds found are imperial pigeon, grey jungle fowl etc. It was declared as a sanctuary in 1975. Considering the ecological, faunal, floral, geo-morphological and zoological significance, it was declared as a National park in 1978. The park is divided into 3 regions - the core area, the buffer area and the tourism area.

Eravikulam Wildlife Sanctuary is a sanctuary set up for the preservation of the endangered Nilgiri Tahr.
Nilgiri Tahr in Eravikulam Wildlife Sanctuary
The main inhabitant of the park is Nilgiri Tahr. Now the park has the largest known population of Tahrs existing in the world. The park also shelters Atlas Moth, Elephants, Sambhars, Gaurs, Lion-tailed Macaque, Nilgiri, Langur, Tigers and Leopards.

Spread across an area of 97 sq. kms, the park exhibits the breathtaking natural splendor of rolling grasslands and exotic flowers. Anamudi, the highest peak south of Himalayas, towers over the sanctuary in majestic pride. The Atlas Moth, largest of its kind in the world, is a unique possession of the park.