234 



EAST NEPAL. 



Chap. X. 



hi 



scene opened up the valley, of 

 another but more stony and 

 desolate level lake-bed, through 

 which the Yangma (here very 

 rapid) rushed, cutting a channel 

 about sixty feet deep; the flanks 

 of this second lake-bed were cut 

 most distinctly into two principal 

 terraces, which were again sub- 

 divided into others, so that the 

 general appearance was that of 

 many raised beaches, but each so 

 broken up, that, with the excep- 

 tion of one on the banks of the 

 river, none were continuous for 

 any distance. We descended 200 

 feet, and crossed the valley and 

 river obliquely in a north-west 

 direction, to a small temple and 

 convent which stood on a broad flat 

 terrace under the black, precipitous, 

 west flank : this gave me a good 

 opportunity of examining the 

 structure of this part of the 

 valley, which was filled with an 

 accumulation, probably 200 feet 

 thick at the deepest part, of angular 

 gravel and enormous boulders, both 

 imbedded in the gravel, and strewed 

 on the flat surfaces of the terraces. 

 The latter were always broadest 

 opposite to the lateral valleys, 

 perfectly horizontal for the short 



