31*. A TOUR ROUND NORTH WALES. 



and when it came down to the plain, it 

 continued it's paffage through a fmall mea- 

 dow and acrofs the river Ogwen, which 

 runs down the vale, and lodged itfelf on 

 the other fide of it. It appears very pro- 

 bable, that moft of thofe vaft ftones that 

 are found lying in the mountainous vallies, 

 have been thrown there by accidents, fimi- 

 lar to this. 



The upper end of Nant Frangon is 

 guarded on each fide by a huge conical 

 mountain. As I croffed the top of the 

 vale, I was delighted with a very beautiful 

 and unexpected view for nearly the whole 

 length of it, where the mountains down 

 each fide, appeared for a great diftance 

 falling off in fine perfpeclive. 



Y Trivaen,* the mountain on the right, 

 at the head of the vale, received it's name 

 from three tall ftones landing in an up- 



* Y Tri Vacn, the three ftones or pillars. 



right 



