The bulk of the state is in the Bayaluseeme region, the northern part of which is the second-largest arid region in India. The highest point in Karnataka is the Mullayanagiri hills in Chikmagalur district which has an altitude of . The two main river systems of the state are the Krishna and its tributaries, the Bhima, Ghataprabha, Vedavathi, Malaprabha and Tungabhadra in North Karnataka, and the Kaveri and its tributaries, the Hemavati, Shimsha, Arkavati, Lakshmana Thirtha and Kabini, in South Karnataka. Most of these rivers flow out of Karnataka eastward, reaching the sea at the Bay of Bengal. Other prominent rivers such as the Sharavati in Shimoga and Netravati in Dakshina Kannada flow westward, reaching the sea at the Arabian Sea. A large number of dams and reservoirs are constructed across these rivers which richly add to the irrigation and hydroelectricity power generation capacities of the state.