JOURNEYS THROUGH KOREA. 127 



Eiver," there arises on the eastern horizon the still mightier 

 ridge of the snow-covered Yuk-sim-nyong on the boundary of the 

 province. This ridge I climbed the next day, January 10th, 

 1901, and stood on one of the highest points in the high interior 

 of Cliyol-la'Do. 



The "Red River" was next crossed, on its way from the 

 open south to its closed gorge on the north. The PJicm-kogäl ^' was 

 then crossed on granite-gneiss with the shear plane likewise 

 dipping easterly, and we entered the little intermontane flat 

 of Clujang-gydi-jijang '^ (PL XXIX. ßg. 3). The rock is a rather 

 fine-granular hornblende-gneiss-granite, composed of plagioclase, 

 orthoclase, irregular scales of deep-brown biotite and also 

 irregular plates of deep brownish-green hornblende with poikiliti- 

 cally inclosed crystalloids of quartz. It is a dioritic orthogneiss 

 with crystallization- schistosity showing scarcely any signs of 

 the mechanical shearing which is the commonest phenomena ob- 

 served in the Korean granites. 



We rode up a gradual slope (see the view cited above) of 

 porphyritic gneiss -granite pierced through by a dark diorite, and 

 finally reached the steep pass (690 m) of the Yuk-sim-nyong, (PL 

 XXX. ßg. 1). The name, which means " sixty ", refers to the fact 

 that in early days during an interval of a few months some sixty 

 travellers were here waylaid and robbed by bandits. This was the 

 highest point of the present traverse, and is on the boundary be- 

 tween the provinces of Kyöng-scmg and Chyöl-la. The rock on the 

 top is a coarse whitish granite, made slightly schistose by shearing, 

 with the schistose plane inclining northwestwards; it contains 

 large mi c recline crystals, 3 J cm long. On our left stood the bald 



1) /K « 2) ß r^ ^- 



