fbi HIGHLANDS nf SCOTLAND. n 



fomewhat femi-circular fhape, about forty yards in length, and 

 fifteen at its greateft breadth. In Plate II. fig. i. which is a 

 ground-plan of the whole works upon the fummit of this hill, 

 the outward wall is marked by the letters P, M, N, X, Q^; and 

 at P is the level platform above mentioned. This outward wall 

 is in many places fo low, as to be almoft level with the rock, 

 though, in other places, it rifes to the height of two or three 

 feet ; but even where it is lowed:, the marks of it may be 

 traced by a line of vitrified matter flicking faft to the rock, all 

 along nearly of the fame breadth, which, in moft places, is 

 about nine feet. The remains of this wall are ftrongly vitri- 

 fied, unlefs in one place upon the north fide, where, for about 

 feventy yards, the rampart is formed only of dry ftones and 

 earth. The probable reafon of this I mall afterwards mention. 

 It is fufncient juft now to obferve, that the flrong natural de- 

 fence that was afforded on this fide, by the extreme fteepnefs of 

 the rock, which is here almoft perpendicular, fuperfeded the 

 necefhty of much artificial operation, there being little hazard 

 that an affault would ever be attempted on this quarter. 



Every where elfe this outward wall appears Completely vitri- 

 fied ; and at the eaft fide, where the hill is more accefhble, and 

 the declivity more gradual, there is a prodigious mound of vi- 

 trified matter, extending itfelf to the thicknefs of above forty 

 feet. At the fouth-eaft corner, and adjoining to this immenfe 

 mound, is an out-work, confiding of two femi-circular vitrified 

 walls, with a narrow pafs cut through them in the middle. 

 This appears to have been another, and perhaps the principal 

 entry to the fort. It was neceffary that there fhould be two 

 entries ; one from the level ridge which joins this hill on the 

 weft to that chain of which it forms the extremity, the other 

 from the low country to the eaft. The entry to the weft was 

 defended in the manner already defcribed ; that towards the eaft 

 did not admit of a defence of the fame kind, but was fecured 

 by three ramparts ; and the pafs through the femi-circu- 



B a . lar 



