Sir John William Kaye.The Parung Pass. This is the traditional trade route between the peoples of Spiti; Ladakh and Tibet. It connects the Lahaul-Spiti region of Himachal Pradesh with Ladakh. The Para Chu river rises to the north of the pass and turns eastwards to enter Tibet; Chromolithograph.London: Day and Son; 1867.From: William Simpson; India; ancient and modern: a series of illustrations of the country and people of India and adjacent territories.X108 (7)London; British Library.