The Kaveri, also spelled Cauvery in English, is a large Indian river. The origin of the river is traditionally placed at Talakaveri, Kodagu in the Western Ghats in Karnataka, flows generally south and east through Karnataka and Tamil Nadu and across the southern Deccan plateau through the southeastern lowlands, emptying into the Bay of Bengal through two principal mouths.
The Kaveri basin is estimated to be 27,700 square miles (72,000 km2) with many tributaries including the Shimsha, the Hemavati, the Arkavati, Honnuhole, Lakshmana Tirtha, Kabini, Bhavani River, the Lokapavani, the Noyyal and the Amaravati River. Rising in southwestern Karnataka, it flows southeast some 475 mi (765 km) to enter the Bay of Bengal. East of Mysore it forms the island of Shivanasamudra, on either side of which are the scenic Shivanasamudra Falls that descend about 320 ft (100 m). The river is the source for an extensive irrigation system and for hydroelectric power. The river has supported irrigated agriculture for centuries and served as the lifeblood of the ancient kingdoms and modern cities of South India.