Nagavali River

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Nagavali River rises in the eastern slopes of the Eastern Ghats near Lakhbahal in the Kalahandi district of Odisha at an elevation of about 1,300 metres. The geographic co-ordinates of the river are north latitudes 18 10 to 19 44 and east longitudes of 82 53 to 84 05. Niyamgiri hills where Bauxite mining is proposed are located in Nagavali river basin.[2]

The total length of the river is about 256 km, of which 161 km are in Odisha and the rest in Andhra Pradesh. The catchment area of the basin is 9,510 square km. Nagavali is an interstate river with 4462 km2 and 5048 km2 river basin area located in Odisha and Andhra Pradesh respectively. The river basin receives 1000 mm average rain fall annually. The uplands of the river basin are hilly areas with predominantly tribal populated. It drains parts of the Kalahandi, Rayagada and Koraput districts of Odisha and Srikakulam, Vizianagaram districts of Andhra Pradesh,(Wikipedia).