Deccan Plateau part of the peninsula between the Narmada and Krishna rivers. Having once constituted a segment of the ancient continent of Gondwanaland, this land is the oldest and most stable in India. The Deccan plateau consists of dry tropical forests that experience only seasonal rainfall. On the western edge of the plateau lie the Sahyadri, the Nilgiri, the Anaimalai and the Elamalai Hills, commonly known as Western Ghats. The average height of the Western Ghats, which run along the Arabian Sea, goes on increasing towards the south. Anaimudi Peak in Kerala, with a height of 2,695 m above sea level, is
Xiangkhoang Plateau the Xiangkhoang. Altitudes within the plateau area may reach 1000 m. Several tributaries of the Mekong drain in the plateau, such as the Nam Ngum, Ngiap and the Khan River. The major town in the area is the capital of Phonsavan. The plateau gives its name to present-day Xiangkhouang Province in which Phonsavan is located. The plateau is the location of the Plain of Jars, which is a collective name for several sites with funerary archeological remains nominated for UNESCO World Heritage status. The plateau is also one of the most heavily contaminated areas in the world from unexploded cluster