tributaries of Yamuna, as well as Luni River which flows into the Rann of Kutch. North-to-south flowing rivers originate from the western slopes of the Aravalli range in Rajasthan, pass through the southeastern portion of the Thar Desert, and end into Gujarat. Luni River, originates in the Pushkar valley near Ajmer, ends in the marshy lands of Rann of Kutch. It used to be one of the channel of the Saraswati River, as a result its banks have several Indus Valley civilisation sites including Lothal. Sakhi River, ends in the marshy lands of Rann of Kutch. Sabarmati River, originates on the western slopes of Aravalli range of the Udaipur District, end into the Gulf of Khambhat of the Arabian Sea. West to north-west flowing rivers originate from the western slopes of the Aravalli range in Rajasthan, flow through semi-arid historical Shekhawati region and drain into southern Haryana. Several Ochre Coloured Pottery culture sites, also identified as late Harappan phase of Indus Valley civilisation culture, have been found along the banks of these rivers. Sahibi River, originates near Manoharpur in Sikar district flows through Haryana and meets its confluence with the Yamuna in Delhi where it is called Najafgarh drain, along with its following tributaries: Masani barrage, is an important wildlife area. Dohan river, tributary of the Sahibi River, originates near Neem Ka Thana in Sikar district). Sota River, tributary of the Sahibi River with which it merges at Behror in Alwar district. Krishnavati river, former tributary of Sahibi river, originates near Dariba copper mines in Rajsamand district of Rajasthan, flows through Patan in Dausa district and Mothooka in Alwar district, then disappears in Mahendragarh district in Haryana much before reaching Sahibi River. It previously was a tributary to the Sahibi and part of its present canalised channel is called the Outfall Drain No. 8. Many important wetlands lie in its paleochannel, including Matanhail, Chhuchhakwas-Godhari, Khaparwas Wildlife Sanctuary, Bhindawas Wildlife Sanctuary, Sarbashirpur, Sultanpur National Park, Basai and The Lost Lake (Gurugram). West to north-east flowing rivers, originating from the eastern slopes of Aravalli range in Rajasthan, flow northwards to Yamuna. Chambal River, a southern-side tributary of Yamuna River. Banas River, a northern-side tributary of Chambal River. Berach River, a southern-side tributary of Banas River, originates in the hills of Udaipur District. Ahar River, a right-side (or eastern side) tributary of the Berach river, originates in the hills of Udaipur District, flows