A TOUR ROUND NORTH WALES. 357 



On the farther edge of the lake, and juft 

 under Mynydd Mawr, is Caftell Cidwm, 

 Cldwms Fort, a high and fteep rock, on 

 the fummit of which, Mr. Rowlands * 

 fays, was formerly a fortification, one of 

 the guards to the entrance of Snowdon, 

 and founded by the Britons, fometime 

 prior to the fixth century. Whether there 

 are any remains of this fort now exifting, 

 I am not able to fay : the difficulty of 

 afcending to it, and the fmall importance of 

 the object, deterred me from examining. 



Higher up, amongft the mountains on 

 the right, I faw a fmall pool, about the 

 iize of a good horfe-pond, called Llyn y 

 dwarchen, the lake of the fod, fir ft cele- 

 brated by Giraldus Cambrenfis, in his Jour- 

 ney through Wales, in the year 1 188, and 

 afterwards, by Leland and Camden, as con- 

 / 



* Mona Antiqua Reftaurata, 149, 



A a 3 taining 



