Eravikulam Wildlife Sanctuary is a sanctuary set up for the preservation of the endangered Nilgiri Tahr. The park has the largest known population of Tahr's existing in the world and also shelters Atlas Moth, Elephants, Sambhar's, 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 Eravikulam (15 kms from Munnar) is situated in the Devikulam Taluk of the Idukki District. The 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 breathtakingly beautiful. This Park spread over an area of 97 sq. km, 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). 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. Visitors are allowed only to the tourism area which is in the Rajamala region. Trekking facilities are available here. Anamudi (2694 m), the highest peak, south of the Himalayas, is situated in the south of the Park.

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.