KiINAHAN 
On Loch Betha, Co. Donegal. 473 
the most southern point of Roshin, are the remains of a small cashel 
or stone fort. (Note in press, p. 474.) 
Further south-west, on Lough Island, are the remains of what 
appear to have been a castle or fort. This island seems to have 
been joined to the mainland in old times by a eash or balloch, on the 
site of the present ford. Still further south-westward, on the main- 
land, a little north of the south-west end of the lake, there are the 
ruins of a rather large stone fort, called on the Ordnance map 
‘Cashel Fort.” These are evidently ancient structures ; but, besides 
them in the take, are two or three small islands, one of which, 
Gallagher’s, or Gull Island, at least may have been a crannog; but 
nothing positively can be said without explorations. 
In the country immediately south of the lake there is the remark- 
able butte called Crockraw, anglice, ‘‘ Hill of the Fort,’’ and a precip- 
ifous mass of rocks called Carrickmoroghyduff, both of which were 
evidently at one time fortified. The same thing may be said of the 
butte called ‘‘ Doon,’’ in Glendowane, to the south-west, while on the 
summit of Tullybeg, to the east of the north-east end of the lake, are 
the remains of a Wiss, or clay fort. 
All these habitations show that the place must at one time have 
been of some importance; but there are yet others, as in the valley to 
the north we find, on the brow a little west of Loughnacally, in the 
townland of Lachnacoo, one of those primitive cells usually dedicated 
to a saint: this being called after the Columbkille who, the country 
people say, ‘‘ was born at Kilmacrenan, educated at Douglas (a few 
miles southward of Derrybeagh Lough), and buried at Gartan.” This 
cell is a very primitive structure, being of a four-sided, roundish form, 
with a short passage entrance to the north-east, the walls bemg rude 
flagstones, scarcely more than two feet high. Close alongside is a 
large flagstone called St. Columbkille’s Bed, of an irregular roundish 
shape, its maximum length and width being about eight and six feet ; 
it is remarkable for the numerous cups (about ninety) cut in it, as 
shown in the rubbing exhibited. This flagstone appears to me 
to have been formerly the cover-stone of the cell. The cups are from 
a quarter of an inch to two inches in depth, and of various diameters. 
For the sketch of the remains of the cell and of St. Columbkille’s 
bed lying alongside, I am indebted to Mr. J. A. Mahony of Ramelton. 
Further north and immediately adjoining the village of Lachnacoo 
there is a bulldn, or bruising corn-mill,! cut in a roundish stone; this is 
now smothered up in a break of ferns. A little westward of it, on the 
opposite brow of the stream, in a rock surface, are two small cups, 
while some distance further north-east of Lough Akibbon are the 
ruins of St. Columbkille’s church, abbey, and well, with two or three 
very rude stone crosses, all of which are very much dilapidated, and 
1 Some of these are in use at the present day in the county Donegal, the pestle 
being of iron, made by one of the country smiths. 
