316 



Proceedmgs of the Royal Irish Academji. 



To Magh an Chosnanihaigh at Cillsliebhe. Meigh, which is the only 

 plain in Killevy Parish, Co. Armagh. " The Defenders' Plateau," 

 at the very mouth of the Newry Pass, is a very suggestive name. 



To Snamh Eughnachair. " Euchnacar's swimming ford." The old name 

 of Carlingford Bay. 



To Cumar Cluain Iraid. " The confluence of Clonard " near Balbriggan. 



To Life. The Liffey. 



Disregarding the southern boundary, we will trace this frontier between 

 Uladh and Meath. Commencing at Carlingford Bay we find Meigh at 



Di 



DONEGAL 



(ra«Enniski(-.len •' 

 •_E R M AkA G H ■■•■;: ^ 



•• -OlV"^ n ';/'-;^ J«V«CIcijies (?■•-.. Gullion * V, 





ghter 



'iL.AIIen 



...■ROSCOMMON 



w %\.Carncli« _ ,«"^ 



fA V A N SI^^K"^ """'^'l 



;,, , >^L.Gowna 

 FORD ,.^£^.Derrava*ragh 



•Athlone 



Dublin Bay 



Boundary of Uladh after alteration by KingTuathal . 



Boundaries of present Counties . 

 1 The Black Pigs Trench or Valley. 

 . Site identified of same . 



Local names of portions . 



A. Danes Cast. 



B. Worm Ditch. 



C. Duncla. 



Fig. 2. — Ancient boundaries of Ulster. 



Killevy, where the Dane's Cast seems to end. Following round Slieve 



