Rock valley, ii. [67]
Rock-drawings in Dok-chu valley, i. 422
Ronggak-chu, river, ii. [104]
Ruins, encouraging effect of discovery of, i. 169
Rukyok-tsangpo, river, and valley, ii. [69], [334]
Rung valley, bivouac in, i. 277
Rung-chu, river, i. 280
Rungma, village of, i. 285, 403
Ryder and Wood, maps by, referred to, ii. [41], [85], [90], [405]