Chang Parma
The "Khurnak Bridges" are the twin adjacent bridges over the Pangong Tso/lake, one smaller and a bigger one for the heavier vehicle, built by China to connect Khurnak Fort on the north bank to Rutog in southeast via a new road which will reduce the distance between two locations by 150 km. India claims that this bridge is illegal as it lies in the area claimed by India. It lies 20 km east of the point [Finger 8] which India perceives to be the location of LAC. Though the ruined fort itself is not of much significance, it serves as a landmark denoting the middle of Pangong Lake. The fort lies at the western edge of a large plain formed as the alluvial fan of a stream known as Chumesang, which falls into Pangong Lake from the north. The plain itself is called Ote Plain locally, but is now generally called the Khurnak Plain.
Geography
The Khurnak Fort stands on a large plain called Ot or Ote at the centre of Pangong Lake on its northern bank. In recent times, the plain has come to be called the "Khurnak Plain", after the fort. The plain divides Pangong Lake into two halves: to the west is the Pangong Tso proper and to the east are a string of lakes called Nyak Tso, Tso Ngombo, or other names.
The Khurnak Plain is 8 miles long and 3 miles wide. It is, in fact, the mouth of a valley called Chang Parma (meaning "northern middle", also called "Chang Barma", later "Changlung Lungpa"). The Chumesang stream that flows through the valley—about 40 to 50 miles long—brings down waters from numerous glaciers lying between Pangong Lake and the Chang Chenmo Valley. The plain is formed by the alluvial deposits of the stream encroaching into the bed of the lake. The growth of the plain over the millennia has reduced the lake in its vicinity to a narrow channel "like a large river" for about 2–3 miles, with a minimum breadth of 50 yards. The constrained flow of water from east to west makes the lower lake to the west (Pangong Tso) considerably more saline than the eastern lake (Tso Ngombo).
The top of the Chang Parma valley is marked by a grazing ground called Dambu Guru. Here, the valley branches into two valleys, one going northwest to the Marsimik La pass and the other going northeast to the grazing ground of Mipal (or Migpal/Mitpal). Mipal is connected via mountain passes to both the Chang Chenmo Valley in the northwest and the well-watered village of Noh in the southeast.
H. H. Godwin-Austen noted in 1867 that all of Ote Plain had considerable growth of grass and formed a winter grazing area for the Changpa nomads. The snow never stayed for long on the Ote Plain, even when the lake itself froze. The Changpa nomads of Noh (also called Üchang or Wujiang) and Rudok camped out at the plain during the winter. To protect the tents against the wind, walls of stone and earth were built, and the floors were dug 3 feet deep. Strachey also labels the Khurnak Plain as "Uchang Tobo", which might indicate a connection with the village of Noh.
Access
The Khurnak Plain is accessible from both Ladakh and Rudok via multiple routes. Strachey noted two access routes from Ladakh, one via Marsimik La and the other via the Chang Chenmo valley and Mipal. These were usable in the summer. A third route from the south, crossing the narrow channel of the lake, shown in later maps as a ford, would have been the easiest route to the Khurnak Plain (Map 3). The ability to ford the lake here was found erroneous in later British testimonies.
From the Tibetan side, a route along the northern shore of Pangong Lake was available. Sven Hedin witnessed it being used as a trade route by Ladakhi traders going to Rudok. The route was difficult to traverse in parts because of cliffs jutting into the lake. However, this was no impediment in winter when the lake froze. In addition, a longer route from Noh via Mipal was also available. (Map 3)
Khurnak Fort
Godwin-Austen mentioned the Khurnak Fort, whose ruins stood on a low rock (elevation: 4,257 m) on the northwestern side of the plain. Judging from its site, he believed that it belonged to Tibetans who presumably built it "years ago". But its proximity to Leh and the strength of its Thanadar (governor), he thought, placed it in Kashmiri territory. The Khurnak Plain was a "disputed ground", according to Godwin-Austen, which was claimed by the Ladakhis as well as the Tibetans of Rudok.
Evidently, the purpose of the fort was to guard against Ladakhis crossing to the Khurnak Plain from the south, crossing the narrow channel of the lake. Such activity was witnessed during the times of the British Raj as well. The Khurnak Plain, being a prized winter pasture ground, was the preserve of the shepherds from Noh, the only permanently inhabited place on the north shore of Pangong Lake. Ladakhis, who lived south of Pangong Lake, had their winter pastures in Skakjung, much further to the south.
History
In 1863, British topographer Henry Haversham Godwin-Austen described Khurnak as a disputed plain claimed both by inhabitants of Panggong district and Tibetan authorities from Lhasa. He personally believed that it should belong to the latter due to the "old fort standing on a low rock on the north-western side of the plain" previously built by the Tibetans. Godwin-Austen remarked that the Kashmiri authorities in Leh had recently exerted their influence in the region such that Khurnak was effectively controlled by the Maharaja of Jammu and Kashmir.
According to Alastair Lamb, the majority of British maps published between 1918 and 1947 showed Khurnak as being in Tibet.
Sino-Indian border dispute
Prior to 1958, the boundary between India and China was considered to be at the Khurnak Fort and Indian forces visited it from time to time and had a post there. China wrested its control since around July 1958, according to most sources.
During the 1960 talks between the two governments on the boundary issue, India submitted official records, including the 1908 Settlement Report, which recorded the amount of revenue collected at Khurnak, as proof of jurisdiction over Khurnak. The Chinese claim line of 1956 did not include the Khurnak Fort, but the 1960 claim line included the Khurnak Fort.
In 1963, Khurnak Fort was described by the US National Photographic Interpretation Center as follows:
Location--33-44N 78-59E, 20 nm north-east of Chushul, on the north shore of PangongTso. Facilities--one large barracks-type building, 2 large storage-type buildings, and 9 smaller buildings; dry moat on three sides; six AW positions and several individual firing positions. Served by natural surface road; no vehicles observed.
As of 2019, a PLA border patrol company of the Western Theater Command was stationed nearby.