During the British Raj, this was a halting spot for travellers to Central Asia via the 'Chang Chenmo route', passing through Aksai Chin.
Military post
After Indian independence, a border outpost was established here by a border police party headed by Captain Karam Singh. It continues to serve as a base for India's border forces.
Indian Military also has an ammunition depot at Tsogtsalu.[4]
Map 1: Changchenmo Valley and its branch valleys (Survey of India, 1916)Map 2: Changchenmo Valley and its branch valleys (US AMS, 1955)
Transport
Within India, it is reachable by the "Marsimik La Road" from Phobrang via Marsimik La.[5][6][7] An additional route the 55 km long from the west along the Changchenmo valley is under construction.[8]
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