From the Gya Peak the boundary follows the watershed between the Spiti and Pare rivers and crosses the Pare river a mile south of the village of Kauirik. South of the Pare river the boundary ascends one of the ranges leading to the high peak of Leo Pargial (Long. 78° 45′ E and Lat. 31″ 54′ N), crosses the Sutlej at its bend, and following the Zaskar range lies through the Shipki Pass (Long. 78° 44′ E and Lat. 31° 51′ N), the Raniso Pass (Long. 78″ 49′ E and Lat. 31° 38′ N), and the Shimdang Pass (Long. 78° 44′ E and Lat. 310 29′ N). Thereafter it follows the main watershed between the Sutlej and the Ganges basins and lies through the Thaga Pass (Long. 79° 7′ E and Lat. 310 26′ N), Tsang Chok Pass (Long. 79° 13′ E and Lat. 31° 20′ N), Muling Pass (Long. 79° 18′ E and Lat. 31° 13′ N), Mana Pass (Long. 79° 24′ E and Lat. 31 ° 4′ N), Niti Pass (Long. 79° 52′ E and Lat. 30° 58′ N), Tun Jun Pass (Long. 79° 58′ E and Lat. 30° 53′ N), Kungri Bingri Pass (Long. 80° 13′ E and Lat. 30° 38′ N), Darma Pass and the Lipu Lekh Pass (Long. 81° 2′ E and Lat. 30° 14′ N), to join the tri-junction of the India, Nepal and Tibet boundaries.
