Shimoga lies between the latitudes 13°27' and 14°39' N and between the longitudes 74°38' and 76°04' E at a mean altitude of 640 metres above sea level. The peak Kodachadri hill at an altitude of 1343 metres above sea level is the highest point in this district. Rivers Kali, Gangavati, Sharavati and Tadadi originate in this district. The two major rivers that flow through this district are Tunga and Bhadra which meet at Koodli near Shimoga city to gain the name of Tungabhadra, which later joins River Krishna.