Gangavalli River (also called Bedthi River) is a west flowing river that originates from the Western Ghats
, south of Dharwad
. The river is formed of two main streams - Shalmali originating near the Someshvara temple (south of Dharwad) and Bedthi taking its birth near Hubli
. These streams join near Kalghatgi
. Gangavalli River flows west and south-west for a total distance of 96 km. This river has a catchment area of 3,574 sq km and has a total length of 152 km. On its course towards the Arabian Sea
the river falls from a height of 180 m at a point on the western face of the Sahyadri to form a cataract by name Magod Waterfall
. The perennial river Sonda joins Gangavalli near Harigadde.