part 3] THE GLACIATION OP NORTH-EASTERN IRELAND. 409 



ancient watch-towers. The rocks on the east side are strongly 

 moutonnes. At the southern end of the gorge is a drift- 

 plateau fringing the mountains, and the channel is continued across 

 this for nearly a mile. The channel is now almost streamless. 



The third gap is that between Slievenabolea and Feede Moun- 

 tain. It cuts the 200-foot contour, and is thus lower than 

 those previously mentioned. It is a very large channel with a 

 broad flat floor, and must have carried a powerful stream, at one 

 stage draining the greater part of the amphitheatre. The existing 

 stream is very small, and quite inadequate for the cutting of so 

 large a valley. 



The fourth channel is Ravensdale, already mentioned as being 

 •occupied by the Flurry River. The upper end of the narrow 

 portion of the dale is at Flurrybridge, at 320 feet above sea-level. 



This completes the circuit of the Slieve Gullion amphitheatre, 

 and there remains for description only the mountainous tract of 

 •country between Ravensdale and Carlingford Lough. 



This area consists of two main masses, western and eastern, 

 •separated one from the other by the col known as The Windy 

 ■Gap, above Omeath and Glenmore, the valley occupied by the 

 Big River and the Little River, leading southwards from The 

 Windy Gap to the sea (see maps, figs. 7 & 8, pp. 406 & 408). 



The western mass includes Anglesey Mountain (1549 feet O.D.), 

 (Clermont (1462 feet), Clermont Cam (1674 feet), Carnavaddv 

 (1508 feet), The Castle (1265 feet), and Slievenaglogh (1024 

 feet) ; the eastern includes the long ridge of Carlingford Mountain 

 (1935 feet) and Barnavave (1142 feet). 



Anglesey Mountain is prolonged northwards by a long ridge 

 which separates the Newry Valley from the Adavojde Basin. 

 This ridge falls very steeply towards the Newry Valley on the 

 (east, but much more gently on the west. It is cut through by 

 several dry channels, all falling westwards, at levels between 300 

 and 600 feet. 



Striations near Monument show a movement down the valley, 

 and the ridge now under consideration forms the western boundary 

 of the Newry-Hilltown -Warren point triangle defined on p. 401. 



At the southern end of the ridge, a mile north-east of Clontigora, 

 is a channel at 650 feet falling westwards : that is, from the Newry 

 Valley towards the head of Ravensdale ; and a quarter of a mile 

 south of the summit marked 810, another channel just below 

 700 feet falls first southwards, and then eastwards. There are 

 considerable accumulations of drift here, and the surface is very 

 irregular and moraine-like. 



There are several small streamless notches, all falling south- 

 eastwards, on the shoulder of Anglesey Mountain between the 

 levels of 700 and 900 feet. 



In the course of a stream which flows from Clermont to the 

 Lough, north of Oineath Park, are several deep sections in pinkish- 

 buff boulder-clay crowded with big boulders of granite and quartz- 



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