Dunamoe Fort, Co. Mayo.
At Dunamoe Point, on the north-west coast of the Mullet peninsula, are the remains of a fine cashel, which crosses the neck of the headland. The wall is 210 feet long, 8 feet thick, and 18 feet high in places; but it is in a state of dilapidation. Without is a fosse and a slight abatis. Within the wall are the remains of three clochauns, and a ruined circular fort, about 100 feet in diameter.
The ‘School House’ (Bee-hive hut), Inismurray.
Section of an ordinary underground beehive-shaped hut.
The Island of Inismurray, lying about 4½ miles off the coast of Sligo, contains within its narrow limits an extraordinary collection of antiquarian remains. These are enclosed in an area measuring 175 by 135 feet, formed by a cashel of rude stones, which varied in height from 7½ to 13 feet, and from 7 to 15 feet in thickness. In 1880 the Board of Public Works undertook the restoration of these remains. The features of the cashel were much interfered with; it was made of nearly uniform height, parts being pulled down to build up others which had fallen; the traces of the interior steps were converted into niches to hold cross-inscribed stones, and the southern entrance was entirely rebuilt. There were four entrances to the cashel, with probably a fifth on the south-west face. Two of these in the north-west side are of special interest. The approach from without is through a low doorway about 2½ feet high and 2 feet wide at lintel, but slightly more at bottom. Passing through 3 feet of a passage, a dome-shaped chamber is entered 6 feet in diameter and 7 feet high. Across the middle the floor rises with a perpendicular face of earth 2½ feet high, the original elevation being probably greater. From the chamber the passage inwards is the same as the outer. These are similar in plan to the passages and chambers of many souterrains, and were probably constructed for defensive purposes. The interior of the wall showed that it was stepped similar to Staigue Fort. The area of the court was divided into four unequal sections by stone barriers. There are several chambers in the walls; but for what purpose they were originally intended it is now difficult to determine. In the area are three clochauns. One is 13 feet in diameter, and from floor to top of vaulted roof 14 feet. There is a projecting ledge on one side, intended for rest or sleeping. The doorway is massive, and measures 3 feet 8 inches high, with sides inclining from 2 feet 2 inches to 1 foot 9 inches. The shape is oval, and the walls commence to slope a short distance from the ground, and approximate by overlapping in the usual way. It is known as the ‘School House’; and as it evidently belongs to the primitive class of structure, it forms an interesting link of pagan days with the first missionary residents on the island. Here, as on the Island of Aran and elsewhere, as Petrie points out, the early Christians utilised the pagan forts in founding their religious establishments. The walls they raised around others differ materially from the primitive cashel in strength, height, and the characteristic features we have described.[88]
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The Grianan of Aileach, the ancient seat of the O’Neills, kings of Ulster, is a fort on the summit of a hill 803 feet high, about 5½ miles from Derry, overlooking the east shore of Lough Swilly. It consists of three extensive circular ramparts, greatly dilapidated, formed of earth mixed with stones, the outer enclosing an area of 5½ acres. Within the inner breastwork is a cashel, a circular wall about 17½ feet high, enclosing an area of 77 feet in diameter. It has an average thickness at the base of 13 feet, and is not quite perpendicular, but has a curved terrace-shaped slope, like Staigue Fort in Kerry. On each side of the entrance gateway are passages within the thickness of the wall, extending in length to one-half of its entire circuit. These do not communicate with the gateway, but have entrances from the area at their northern and southern extremities. The passages are 5 feet high, and over 2 feet wide, with sloping sides, the roof being formed of stones laid horizontally. The entrance gateway is 4 feet 3 inches wide at the base; the sides are inclined, and the original height was probably 6 feet. On each side is a reveal intended to receive the doors which barred the passage. This great residence was destroyed by Murkertagh O’Brien, king of Munster, in 1101. The Cashel was restored by Dr. Bernard, of Derry, during the years 1874–8.
Out of the mass of myths and legends concerning primitive times in Ireland, it is invariably difficult, if not impossible, to disentangle the slight threads of fact from the web of romantic fables of bards and chroniclers. These have their value, however, when supported or tested by the evidence gleaned in the actual field of archæological investigation. Isolated geographically as Ireland was, she was yet the shore upon which the successive waves of influence sweeping over Europe spent themselves. She was, as a rule, not only late in being brought under the sphere of new influences, but some had especial opportunity of development, and many retained their hold and flourished long after they had ceased to exist elsewhere. The extent of the forts of Ireland, and the length of time they remained in occupation, is an example of this.[89]