Haryana's main seasonal river, the Ghaggar-Hakra, known as Ghaggar before the Ottu barrage and as the Hakra downstream of the barrage, rises in the outer Himalayas, between the Yamuna and the Satluj and enters the state near Pinjore in the Panchkula district, passes through Ambala and Sirsa, it reaches Bikaner in Rajasthan and runs for 460 kilometers before disappearing into the deserts of Rajasthan.