Eravikulam National Park is a national park located along the Western Ghats in the Idukki district of Kerala state. Eravikulam National Park is situated at Rajamallay which sets on Munar-Udumalpet Road in the South Indian state of Kerala. The national park is situated at the higher altitudes of Western Ghats. Geographically, it is located at 9 deg. 40 min latitude and 77 deg. 20 min longitudes.
Eravikulam-Rajamallay was declared a wildlife sanctuary in 1975. This sanctuary attained the status of a National Park within three years of its establishment in 1978. The main purpose of establishing this park was to protect and conserve Nilgiri Tahr. Apart from tahr, the Park is the abode of other little known fauna such as Nilgiri marten, ruddy mongoose,small clawed otter,dusky striped sqirrel etc.
The major part of the park is covered with rolling grasslands, but several patches of shola forests are also found in the upper part of the valley. Important flora includes Actinodaphne bourdilloni, Microtropis ramiflora, Pittosporum tetraspermium, Sysygium aronottianum, Chrysopogon Zelanieus, Eupatorium adenophorum, Strobilanthus Kunthianus (Neela Kurinji), Eulalia phaeothrix, Tripogen bromodes, Arundinella fuscata, Cyanotis Species etc.
The shola grasslands are exceptionally rich in balsams and orchids including the long thought extinct variety Brachycorythis wightii.
Eravikulam is situated in Devikulam Taluk of Idukki district. The sanctuary is divided into three regions - the core area, the buffer area and the tourism area. Visitors are allowed only in the tourism area which is known as Rajamalai, the region lying beyond the road entry into Eravikulam.