6.1   Location and Size · Part 2

Anaimalai hills in the northwest, the Palani hills in the northeast and Varusanadu and Andipatti hills in the southeast. Varusanadu and Andipatti Hills Another eastward extension of Western Ghats is Varusanadu and Andipatti hills. Megamalai (the highway mountain), Kalugumalai, Kurangani hill station, and Suruli and Kumbakarai waterfalls are found on these hills. Srivilliputhur Grizzled Squirrel Wild life Sanctuary is located in the southern slope of these hills in Virudhunagar district. Vaigai River and its tributaries originate in this region. Pothigai Hills Its major part lies in Tenkasi district with its southern slope in the Kanniyakumari district. Pothigai hills are called by different names such as the Shiva Jothi Parvath, Agasthiyar hills and Southern Kailash. These hills feature richest biodiversity in the Western Ghats. This area is known for its rich evergreen forest, waterfalls and ancient temples. Kalakkad Mundanthurai Tiger Reserve is located in this region. Mahendragiri Hills This continous range is situated along the border of Kanniyakumari and Tirunelveli districts and is a part of the southern range of the Western Ghats. Its average height is , metres. Nilgiri Hills The Nilgiri hills is located in the northwestern part of Tamil Nadu. It consists of peaks with more than , metres height. Doddabetta is the highest peak ( , metres) of this hills followed by Mukkuruthi ( , metres). Ooty and Coonoor are the major hill stations located on this hills. It has more than , species of flowering plants and the state animal Nilgiri Tahr is found in this hill. Doddabetta Anaimalai Anaimalai is located in the border of Tamil Nadu and Kerala. It is located to the south of Palghat Gap. Anaimalai Tiger Reserve, Aliyar Reserved Forest, Valparai hill station, Kadamparai hydroelectric Power Plant are located on this hills. Aliyar and Tirumurthy dams are located at the foothills of this range. Palani Hills Palani hills are the eastward extension of the Western Ghats. These hills are located in Dindigul district. Vandaravu ( , metres) is the highest peak in the Palani hills. Vembadi Shola ( , metres) is its second highest peak. The hill station of Kodaikanal ( , metres) lies in