Goa's seven major rivers are the Zuari, Mandovi, Terekhol, Chapora, Galgibag, Kumbarjua canal, Talpona and the Sal.[34] The Zuari and the Mandovi are the most important rivers, interspaced by the Kumbarjua canal, forming a major estuarine complex.[34] These rivers are fed by the Southwest monsoon rain and their basin covers 69% of the state's geographical area.[34] These rivers are some of the busiest in India.