212 



Proceedings of the Royal Irish Academy. 



Tlie entrance to the souterrain is in the inner enclosure of the 

 rath, and the passages and chambers are all contained, with the 

 exception of the actual entrance, "n-ithin the thickness of the vallum 

 (sketch plan, a, b, c, and d). 







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Seletch Plan of Gurteex Eath and Souterrain. 



The greater portion of the mound has long since been removed, 

 but in the part still remaining there lie not only the structure which 

 is the subject of these notes, but, I am strongly of opinion, another 

 souterrain as well, as the configuration of the ground, I think, plainly 

 indicates at e, f, g, and h ; and this opinion, formed at first sight, is 

 strengthened by the existence of local tradition to the same effect. 



The entrance to the souterrain consists of a very strongly con- 

 structed doorway formed of jambs of large rough stones surmounted 

 by a Cyclopean lintel. (Plate II.) 



The portion of the passage leading from this entrance to the vallum 



