MEGALITHIC MONUMENTS
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AHAGLASLIN PORTAL TOMB
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This fine, well preserved portal tomb, marked as 'Callaheencladdig' on all versions of
the OS maps, is located on a small platform, near the top of a hillside, overlooking the
valley of the Ownahinchy River or Awna Hinch, in the town-land of Ahaglaslin
(Achadh Glaislinne) or more properly (*Áth a ghlaislinn meaning 'ford of the green
pool'), which lies 2.5km east of the town of Ross Carbery (*Ros Ó gCairbre meaning
'Cairbre’s wood') and east of the R597. The land-owner, a nice gentleman, whose
family have worked this land for many generations, informed me that the name
'Callaheencladdig' is locally translated as 'the Old Witch of the Sea'. The portal tomb
is the largest Neolithic megalithic structure of this type in the whole southwest region
and it is the 2nd of the only two portal tombs in the County Cork, the other being the
portal tomb at Arderrawinny (CO148-011). The entrance to the chamber is 1.5m in
length and 1.1m in width and at the east, is marked by two tall portal-stones. The south
portal leans against the north and the sides and back of the chamber are each formed
of single stones. Two slabs lean against the south side of chamber and three small
stones lean against the north portal stone. The chamber, covered by a high-pitched
capstone, is resting on the portals and the two-large pad-stones to the west. In front of
each portal, an orthostat forms the inner end of a funnel-shaped approach and the line
of the south orthostat is continued 2.5m to the east by two pairs of overlapping slabs.
Borlase observed what he termed as a passage 'at the west end of the monument,
extending for six or seven yards beyond it, is a rugged pile of stones in disorder, which
has the appearance of being the debris of a passage which, perhaps, formed an
elongation’ and the presence of cushion stones on ‘the tops of the stone at the W. end,
and the two contiguous supporters' (Borlase, p.39). Earlier, John Windele, the
celebrated 19th century Cork antiquarian and author of guides of Cork and Killarney
described the tomb that 'the incumbent slab rests(ing) on four great stones, two at the
N. side, and two at the S., the latter having yielded inwards. The N.E. supporter is 6 feet
high and 4 feet 6 ins. broad. The N.W. one is 4 feet high and 5 feet broad. The
incumbent slab measures 12 feet 6 ins. long by 6 feet broad, and 1 foot 6 ins. thick, the
latter measurement taken at its thickest part. The stones are brown grauwacke'
(Windele, p.768).

Sources:
Borlase, W., ‘The Dolmens of Ireland’ (Vol. I, 1897)
Survey of the Megalithic Tombs of Ireland Vol. IV
Windele, J., MSS ‘Cork West and North-East’ (Sketches) (1895)
Ahaglasin Portal tomb