The Parang River, also called Para River and Pare Chu is an upstream tributary of the Sutlej River, that originates in the Indian state of Himachal Pradesh and ends in Himachal Pradesh again, but flows through Ladakh and Tibet before doing so. The origin of the river is near the Parang La pass in the Spiti subdistrict. After its circuitous journey, it joins the Spiti River near Sumdo in Himachal Pradesh and the combined river then joins Sutlej.