OF LOCHABER. 25 



time led to suppose, that there was decidedly a second line of 

 shelf, until a more perfect view from the side of the hill di- 

 rectly opposite, completely satisfied me, that the undermost, 

 extending only a short way, was neither parallel to that above 

 it, nor horizontal in itself. On ascending, to take a nearer and 

 more accurate inspection, of what appeared so very distinctly 

 marked when viewed from below, I found it to be no other than 

 a well-trod sheep-track, not more than six inches in breadth ; 

 whilst the actual shelf itself, from the steepness of this part of 

 the hill, affords a broader and more perfectly indented speci- 

 men, and more perfectly defined, than is to be met with in any 

 other part of the valley. The deception was increased, by a small 

 patch of heath having been burnt by the shepherds the season 

 before ; and the line of the sheep-track having arrested the fire, 

 and prevented it from spreading below it, the linear appear- 

 ance on the face of the mountain was thereby rendered the 

 more remarkable. 



The bottom of Glen Gluoy rises considerably towards its 

 upper extremity, which, turning south-eastwards, is rather ex- 

 panded into an amphitheatre ; and from the end of it there is a 

 vista through another glen, falling towards Glen Turret and 

 Glen Roy, and which, to mark the difference between it and 

 those lower-bottomed glens, I have distinguished in the map 

 by the words High Glen. The shelf having begun on each 

 side of Glen Gluoy, at the points already noticed, is very easi- 

 ly traced almost every where throughout its whole course up- 

 wards. That part of it on the north side, runs around the se- 

 micircular boundary of the head of the glen, and just touches 

 the level of the bottom of the stratum of moss, lying in the 

 mouth of what I have called the High Glen, which I shall af- 

 terwards have occasion to describe more particularly. From 

 this point the shelf bends round to the south side of Glen 



vol. ix. p. i. d Gluoy, 



