Reo Purgyil (6,816 m), and its shorter twin known as Leo Pargial or Leo Pargil (6,791 m), are twin mountain peaks at the southern end of the Zanskar Range in the Western Himalaya located on the border between Himachal Pradesh, India and Tibet, China.
Reo Purgyil is the highest mountain peak in the state of Himachal Pradesh. This dome shaped peak, often obscured by clouds, is part of a great massif that rises above the Sutlej river and overlooks the western valleys of Tibet. The Spiti River, a right bank tributary of the Satluj, drains the northern face of the massif.
Leo Pargial, a well-known slightly shorter twin of Reo Purgyil, is located about 2 km north of Reo Purgyil.
NH-505 passes by the nearby Nako village located on the slopes of the Reo Purgyil mountain, close to the India-Tibet border.
Nako, base for the trekking, also has tourist hotels, homestays, restaurants, a lake, Buddhist Gompa.
NH-505 passes through the nearby Nako.