TERRACES IN THE KUGART VALLEYS. 
99 
The terrace plain continues far up the Kugart-su, l)ut it becomes narrowed 
and the river often cuts through the gravels to the rocks beneath. The rocks 
are weak red beds for several miles, in which the hills are low and the valley 
sides are scarred with landslips. Farther on schists and slates set in, the mountains 
Fig. 64. — Three-mile section across the (western) Kugart Valley, looking northeast. 
rise, and the valley narrows. The upper terrace plain is then more built upon bi- 
lateral fans and more trenched by lateral streams, so that the trail along it has an 
uneven grade. At the mouth of the Kizil-su a fine exposure of the terrace con- 
glomerates is seen, several hundred feet in thickness. Above the Kizil-su cobbles 
and roughly-rounded blocks are found in patches on the mountain side above the 
terrace plain, as if they marked the remnants of some still earlier \-alley filling 
whose terrace form is now lost. Farther on in the mountains the stream rises 
Fig. 65. — Goige of the (western) Kugart, above Taran Bazaar, looking east. 
above the terrace level, and the valley floor is encroached upon by torrent fans from 
lateral ravines. Here we camped in the rain, about 5 miles below the pass, on 
June 30. The discomfort of bad weather was removed by the thoughtfulness of 
our good friend, the Min-bashi, who had given orders to send a party of Kirghiz 
ahead with yurts. When we reached the camp the yurLs were already set up and 
well furnished for a comfortable night. 
