The Zanskar Range is a mountain range in the union territory of Ladakh that separates Zanskar from Ladakh. Geologically, the Zanskar Range is part of the Tethys Himalaya, an approximately 100-km-wide synclinorium formed by strongly folded and imbricated, weakly metamorphosed sedimentary series. The average height of the Zanskar Range is about 6,000 m (19,700 ft). Its eastern part is known as Rupshu.The town had a population of 20,000 in 2020.