As we approached Tingri, the valley widened out and bent round to the South. Tingri itself was situated on the side of a small hill in the middle of a great plain, from which, looking to the South, was visible the wonderful chain of snowy peaks, many of them over 25,000 feet in height, which extends Westwards from Mount Everest. We crossed the Ra-chu—a tributary of the Bhong-chu, partly by bridges and partly by fords ; it was split up into a number of small and very muddy channels that took their rise from the Kyetrak Glacier. Tingri was to be our first base for reconnoitring the Northern and North-western approaches to Mount Everest.