Mattupetty Dam, near Munnar

Munnar

Munnar is one of the most popular hill station in Kerala and in southern India. Munnar is located on the Western Ghats, situated in the Idukki district....

 in Idukki District

Idukki district

Idukki district is one among the 14 districts of Kerala state, India. The district headquarters is located at in Painavu.It is the second least populous district in Kerala, after Wayanad .-Etymology:...

, is a storage Concrete Gravity dam built in the mountains of Kerala

Kerala

or Keralam is an Indian state located on the Malabar coast of south-west India. It was created on 1 November 1956 by the States Reorganisation Act by combining various Malayalam speaking regions....

, India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 to conserve water for hydroelectricity

Hydroelectricity

Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...

. It has been a vital sources of power, yielding along with other such dams, huge revenue to the states. The large amount of perennially available water allows wild animals and birds to flourish. However salinity caused by irrigation and water-logging are of concern to environmentalists.

Munnar is located near the confluence of the mountain streams of Muthirappuzha River, Chanduvarai River and Kundale River. See:map

The reservoir is also known to be one of the visiting grounds of elephants in the region.