The Zanskar Range is a mountain range in the union territory of Ladakh that separates the Zanskar valley from Indus valley at Leh. The range lies between and runs parallel to the Great Himalayas to the southwest and the Ladakh Range to the northeast. Geologically, the Zanskar Range is part of the Tethys Himalaya. There are a number of peaks higher than 6,500 m (21,300 ft). Its eastern part is known as Rupshu.