the slightest doubt about the mighty regularity and the eastward and westward stretching of the range. Its N. W. part, along the east side of the valley of the Buptsang-tsangpo, seems to be less certain. After an interruption formed by the plain of Kebyang the range seems to continue N. W. along the western side of the valley of Buptsang-tsangpo and then along the eastern or N.E. shores of Tarok-tso. In this section of the range we find the names Gyägong-ri, Chokbo-ri and Elung-ri.
N. E. of Damche-la two high mountain groups are called Tsa-timyang-gangri and Nakbo-gongrong-gangri. Farther east the range gradually changes its direction to the north. As I have not crossed this part of Central Transhimalaya, but only have seen it from afar, the orography as presented on the I : I 000000 map is conjectural, and will certainly have to be much improved in the future. Gangri-do was the name by which the natives called the high and steep mountains just west of Shuru-tso. It is, however, possible that this name only appertains to a certain region amongst these mountains. The Shuru Range is the appellation I have given to the mountains west of Shuru-tso. But I cannot tell with certainty how the different ranges in this region are arranged in relation to one another. It seems most probable that the Rong-särchen-kang, Umbu, Gangri - do, Targo - rigüt and Targo-gangri form the uninterrupted continuation of the Eastern Kanchung-gangri. Some informants called the mountains along the whole western shore of the lake »Gangri-do», others said that these were only a part of it, other regions, to the S. W., being called Gangrimasa, and to the W. S.W. Tsari-nakpo. The following features seem to be certain : West and S. W. of Targo-gangri is a very considerable and partly snow-covered mountain range, the N. E. section of Lapchung-gangri. The latter is connected with the Targo-gangri range by a mountain bridge carrying the pass Barong - la, Targobarong-la or Parung-la, famous in the region. So far as I could make out, this pass is a comparatively flat threshold in a meridional valley between the two ranges. The Lapchung and Kanchung-gangri Ranges are therefore, both in the east and west, separated from one another by long open valleys. For, from my Camp 402 my guides showed to the N. 61° W. a low and flat threshold called Dicha-la. A road crosses this pass and continues to the lower Buptsang-tsangpo following the long-stretched tanga or plain situated between the two ranges.'
The next mountain fold situated to the north and inside of the Lapchung Range is too uncertain to be given a special designation. My meridional route from Sangmo-bertik-la to Teri-nam-tso is here of no assistance, as it did not cross any
I In this connection I would invite the reader's attention to the panoramas of the Atlas corresponding to the camps from which the different ranges are visible, as well as to the photographs I have taken during the journey. To take an instance, the mountains west of Shuru-tso are visible on the photogr. panorama IV A in Vol. IV, p. 348, and on the first, third and fourth photo., p. 290 o Vol. III. The text to the first of these three is correct, only in case the Lapchung range raises its snow covered crests' above the Gangri-do which is in front of it. This question is doubtful.
72. VII.
IIIFカラー高解像度
