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| 0121 |
Southern Tibet : vol.4 |
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OCR Text
57
From *Camp XXV* our route rises slowly in a broad, open valley, the floor of
which is sand, dust and fine gravel, with a little patch of grass and yapkak here
and there, but generally barren. No watercourse is crossed, but the whole ground
seems to have been washed by occasional rain-water. To the right of our route there
is, however, the chief watercourse of the valley, beginning from the little threshold
and the bright red mountains north of it. The hills to the south, standing 2 or
3 km. from our route, are of a dirty brown colour. The living rock on the pass is
reddish brown fine-grained sandstone and conglomerate.
From the little threshold the view was unlimited to the N. E., *i. e.* so far as
the not quite clear air permitted. No mountains were visible in this direction, only
the continuation to the E. N. E. and N. E. of the enormous latitudinal valley we had
followed ever since *Aksai-chin*, and which Wellby had followed eastwards all the
way through Tibet. The part in front of us is the same which Rawling has called
*Antelope Plain*, a name that is inappropriate as there are antelopes in nearly all the
plains of Tibet. To the N. 66° E. and N. 83° E. a low ridge of mountains was seen
(Pan. 41, Tab. 7). Some six kilometers east of the pass the next lake was to be
seen, smaller than the previous one. The ground in this region is of an intensely
red colour. From the mountains to the north several very insignificant brooks come
down, all of them now frozen. At the first, which contained some open water,
*Camp XXVI* was pitched in a comparatively protected valley with good grazing and
fuel. At all the four transverse thresholds we so far had crossed in the latitudinal
valley the same observation had been made, *viz.,* that the eastern slope is steeper
than the western and, as a rule, the lowest part of each depression, or in other words
the lake, was situated nearer to the western boundary threshold than to the eastern.
A little east of the pass the rock was grey limestone. The gravel around
*Camp XXVI* consisted mostly of grey oolithic limestone. From the camp the highest
peak of the *Deasy Group* was visible to the S. 40° E., and the nearest peak to
the S. 51° E.
On *October 1st* the march to *Camp XXVII* was only 9.5 km., and the new
camp, being at 5,081 m., was 60 m. below the previous one, giving a slope of
1 : 158. The direction is E. N. E. The little brook at which we had camped turns
E. S. E. towards the next lake.
The lake, which is marked on Rawling's map, has a height of 5,078 m. Its
colour is green and its water as fresh as any spring water. From a valley in the
*Deasy Group* to the S. E., a rivulet enters the lake; it still carried water, and must
be quite large during the summer. The lake must have an outlet somewhere, per-
haps subterranean. About one quarter of its area was frozen, but now gradually
became broken up by the very strong eastern wind. Only along the windward or
eastern shore the ice formed needles and jags pointing towards the wind. Along
S. IV.
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379
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393
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404
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416
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429
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441
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453
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464
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474
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484
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495
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505
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519
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529
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541
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552
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568
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583
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600
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615
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629
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643
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654
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665
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677
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692
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707
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725
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736
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746
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756
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