1824, Alexander Gerard, Journal of an Excursion through the Himalayah Mountains, from Shipke to the Frontiers of Chinese Tartary, David Brewster (editor), The Edinburgh Journal of Science, Volume 1: April—October, page 219,
We crossed it and another stream a little above their union by a couple of bad sangos, and ascended from its bed by a rocky footpath, winding amongst extensive forests of oak, yew, pine, and horse chesnut, to Camp.
Four large mountain torrents, the Dangalee, Dubrane, Loarnad, and Rindee Gadh, join the Ganges from the left bank, and have to be crossed by sangos. 1865, Henry Astbury Leveson, The Hunting Grounds of the Old World, page 459: