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| 0142 |
Southern Tibet : vol.4 |
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CHAPTER VI.
CROSSING THE KOKO-SHILI RANGES.
On *October 13th* we went 11.4 km. to cross the next mountain range which
brought us chiefly in a south-eastern direction. The great flatness of this range will
be realized from the following three absolute heights: at the northern foot 5,129 m.,
at the southern 5,207 m. and the water-parting saddle between them 5,306 m. The
rise from *Camp XXXVII* to the saddle is, therefore, 177 m. or as 1:40, the distance
being 7.1 km., and the fall from the saddle down to *Camp XXXVIII* is 99 m. or
as 1:43, the distance being 4.3 km. For being in a mountain range, the gradients
are, therefore, insignificant. From these figures one gets, however, a good conception
of the flatness of the country. A difference of 177 m. between the crest and the
base of a mountain range is not much. The system of small ranges we traversed
in this region seems to be the western continuation of the *Koko-shili* Ranges or
possibly the *Buka-mangna* in the east.
Still the march of October 13th was not easy, as it consisted of going up and
down among hills the whole day. We followed the principal transverse valley to
the S. E. From the S. W. a considerable tributary enters without a brook. A good
deal of snow was still left on these altitudes. The red principal range was now partly
visible on our right, and on our side of it, there is a small rugged rocky ridge.
In the valley there is a little brook and some ice. Tributary brooks come from
several of the side valleys. Our valley is now about 30 m. broad; its bed is full
of fine gravel. Higher up there is no more water and the snow has disappeared.
In the neighbourhood of the base of the pass there is again a little water; at places
where it seems to disappear it only flows below the gravel. At one place a side
brook had even formed a little waterfall now of solid ice and only 1.5 m. high — a
very rare phenomenon on the Tibetan highlands. The rock is here a dark grey,
dense limestone, very weathered and rotten. The view from the pass is not en-
couraging. To the S. E., south and S. W. a distant view is hidden by a labyrinth
of near hills. To the E. S. E., east, N. E., north and N. W., everything is also hills
situated in our vicinity. Only to N. 57° W. and N. 71° W. and generally in the
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725
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736
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746
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756
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