THREE KERRY SOUTERRAINS
EAMONN P. KELLY
In April 1979 a number of
souterrains was found in the Dingle
peninsula., the discoveries resulting, in the main, from land reclama-
tion work. Three of these flnds were reported to the National
Museum of Ireland and were investigated by the writer assisted by
Miss Audrey McCready.
The structures exhibited similar characteristics and may usefully
be considered in a single paper. Two are sited in the neighbouring
townlands of Ballintermon and Glantane near Annascaul and the
third is in Gallarus near the famous oratory.
GLANTANEI
A souterrain was discovered in this townland when a field
boundary was removed during land development work. It was
situated high on the steep south-facing slope of Flemingstown
Mountain, at the junction of the enclosed fields with the open
mountain pasture. The field boundary which forms the dividing line
between the two types of land-use actually overlies a portion of the
souterrain. This field boundary, which conSists of a bank with a ditch
cut upslope, is straight for most of its course. However, in the
immediate vicinity of the souterrain it curves into an arc (pl. l) in
such a manner as to suggest that it may incorporate portion of an
otherwise destroyed ringfort.
DESCRIPTION OF THE,SOUTERRAIN
The souterrain is an Lshaped structure which has three linked
chambers (fig.
l). Entrance may now be gained througfr a hole
made
by the excavating machine in the roof at the southern end of a large
rectangular chamber (chamber 1). Its floor slopes gently along its
north to south long axis. Part of the northern wall has collapsed.
The inclined walls are constructed of small flat fragments of sedimen-
tary rock resting on a foundation course of large rectangular blocks
and roofed with large slabs. It was originally entered by means of a
passage at the south-eastern corner. Here is placed a large upright
slab into which a trapezoidal opening has been cut. The slab
measures 80 cms by 70 cms; the opening in it has a maximum width
of 44 cms and a maximum height of 30 cms. The chamber is 3.10
l.
Par. Ballinvoher, bar. Corkaguiny: Ordnance Survey six-inch sheet no. 45,25.9
cms. from western margiu 26.1 cms. from northern margin,
THREE KERRY SOUTERRAINS
EAMONN P. KELLY
CHAMBER
1
DESTROYED
Setion,
DRAIN 2
Ptate
l:
View of the site at Glantane looklng east. Note the kink in the ffdd boundary
and the modern entrance to the souterrain.
m. long and approximately 1.20 m. wide. Its maximum height
The passage referred to links chambers I and 2 at right angles. Its
walls are almost vertical and lack a foundation course of large blocks.
It is roofed with large slabs. The floor slopes from north to south and
is defined at its junction with chamber 2by a stone sill. The passage
is approximately 1.20 m. long and has a maximum width of 53 cms.
Its height varies from a maximum of 60 cms. to a minimum of 48
cms.
The closed end of chamber 2 projects beyond the junction with the
passage for approximately 90 cms. The walls, which incline, appear
to be erected on a foundation course of large blocks but these could
not be surveyed because ofthe presence ofwater in the chamber' The
roof is of large slabs. The chamber narrows at its eastern end where
the floor slopes upward into the passage linking chamber 2 with
chamber 3. Chamber 2is 5.20 m. long and narrows in width from
1.00 m. to 80 cms. Its height decreases from a maximum of 1.55 m.
to a minimum of 1 m.
The floor of the passage leading from chamber 2 curves gently to
the north where it adjoins chamber 3 at an angle of approximately
45o. Entrance to the souterrain was originally gained via an opening
entrare to
CHAMBER t
f-
-iOlm
is
1.72 m.
Slab at
EETFEE
Fig.
l:
Souterraln
at Gtantane' plan and cross-sccdonc.
in the roof of this passage. Large jambs are set in the wall on either
side of this. Debris have collapsed through the opening and
accumulated on the floor. The passage walls are almost vertical. They
are roofed with large slabs and, for the most part, lack a foundation
course of large blocks. The passage is approximately 2.00 m. long
and has an average width of 60 cms. Its height varies from a
maximum of 65 cms. to a minimum of 50 cms. The roof opening
measures 55 cms. by 45 cms.
Chamber 3 is a tiny beehive structure constructed in the corbelling
technique. Its inclined walls, which are erected on a large foundation
course, are roofed with a single slab. The chamber measures 1.00 m.
across and is 70 cms. high.
BALLINTERMON,
This souterrain was discovered when a mechanical excavator was
2. Par. Ballynacourty, bar. Corkaguiny: Ordnance Survey six-inch sheet no. 45' 7'2
cms. from western margin; 23.5 cms. from southern margin.
Eratta.
The illustration
shows the
Ballintermon
souterrain'
not the
Glantane
examPle
THREE KERRY
EAMONN P. KELLY
'v
SOUTERRAINS
9
surrounding field. The bank survives to a maximum thickness of
approximately 5.00 m. and has an average height of around 2.00 m.
The earthwork measures approximately 32'00 m' across.
ENTRANCE
DESCRIPTION OF THE SOUTERRAIN (Fie. 3)
Only part of this structure could be examined and its original
extent could not be determined. The surviving portion consisted of
two linked chambers set at right angles to each other' Chamber I had
been largely destroyed and one could only estimate its original shape
It appears to have been a large rectangular chamber,
presumably with further stretches of the souterrain extending to the
north-east but these were completely obscured by rubble. The original
entrance was probably at some, now inaccessible, location within the
souterrain.
Chamber I was constructed of dry-stone walls apparently raised
on a foundation course of large blocks. It seems to have been roofed
with large slabs, one of which lay nearby in the rubble. This measured
and size.
TER RAIN
t4-
.\
N
RINGFORT BANK
A
e
CHAMBER
\,,A1
---.i:Ipg6511T SCARPtNc
rc
10
lSm
epk
Fig. 2: Ringfort at Ballintermon, plan and crosrsections.
used to dig a hole within the western area of a ringfort interior. The
latter (fig. 2) is an oval earthwork with an entrance facing east. The
bank ha.s been scarped in a number of places and there is a gap in the
western arc which appears to be recent. There originally appears to
have been an accompanying ditch which, presumably, has been filled
in over the years and of which no trace now survives.3 The area
enclosed by the ringfort is raised slightly above the level of the
3. A ditch is clearly marked on the 1897 O.S. six-inch
sheet.
ENTRANCE
.---)
t)
Glantane
souterfain,
not the
Ballintermon
u-u
O:$Qs6
gab at efltrance; chamber
Eratta.
The illustration
shows the
1.
Fig. 3: Souterrain at Ballintermon, plan and cross.sections.
example
I0
EAMONN P, KELLY
1.20 m. and it was 20 cms. thick. At the entrance to the
short passage which linked chamber I with chambet 2 alarge upright
slab was set. A trapezoidal aperture cut into its base allowed access
to the passage. The slab measured 1.79 m' by 1.05 m. The maximum
width of the aperture was 45 cms. and it was 55 cms. high. The
surviving portion of chamber I had a maximum width of approxi-
2.40 m.
x.
mately 2.00 m. and a maximum length of 3'00 m'
The passage was short being only 80 cms. in length and was
roofed with a single large slab.
Chamber 2 was a large rectangular structure with inclined walls
set on a foundation course of large blocks and roofed with large
slabs. It was 3.35 m. long, 1.45 m. wide and 1.58 m. high. The floor
dipped towards the back of the chamber where two drains were
situated at the base of the end wall. One was centrally placed (drain
1) and the other (drain 2) was situated in a corner. They ran at an
angle of approximately 40o to each other. Drain I was trapezoidal in
cross-section. Its walls were built of slabs set on edge' leaning
outwards and roofed with slabs. It decreased in width from 38 cms.
at its roof to 26 cms. at floor level. The average height was 22 cms.
and it ran for more than 3.00 m. Drain 2 was straight-sided, built of
dry stones and roofed with slabs. If. in this way, they had access to
the open air, they could also have functioned as ventilation shafts' It
was 22 cms. wide, 43 cms. high and ran for at least 2.08 m. The
possibility that these two features may originally have drained into a
deep ditch outside the bank cannot be discounted.
THREE KERRY SOUTERRAINS
t1
FINDS
A fragment of a millstone which, it appears, had formedy been
built into the wall of chamber 1 was recovered from bulldozed rubble
(fig. 4).'
It
was made from local old red sandstones and may
originally have had a diameter in excess of I m. The stone gradually
thickens towards the centre. This thickening is accentuated by a
sudden raising of the upper surface with a stepJike feature
approximately 9 cms. in from the edge. The top and side bear pock
marks from the dressing of the stone and the grinding surface shows
signs
of considerable
use.
GALLARUS6
The souterrain at Gallarus was discovered during the removal of a
field fence but the opening made. by the mechanical excavator was
insufficient for entry to the structure. To facilitate examination alarger
opening was made by removing some stones from the souterrain wall.
Access into a small oval chamber was then possible' The complete
souterrain is certainly more extensive but access to other parts ofit is
not possible.
DESCRIPTION (Fie. 5)
The chamber walls, which inclined slightly, were built on a founda-
tion course of larger blocks and were roofed with two slabs' A
passage led irrto the north-west corner at an angle of approximately
45". Two large upright facing-slabs formed the passage walls as they
joined the chamber. Elsewhere the passage walls appear to have been
of dry-stone roofed with slabs' At a distance of approximately I m'
from the chamber the passage was blocked with rubble and appears
to have collapsed at that Point.
The chamber was approximately 1.70 m. long, 1 m. wide and 90
cms. in height while the passage was approximately 46 cms' wide and
60 cms. in height.
A deposit of coarse silting, up to l2 cms. thick, which overlay the
chamber floor, was excavated. A quantity of charcoal which was
scattered through this was collected.
The three souterrains have comparable characteristics which
lOcm
0
I
Fig. 4: A millstone ftom Ballintcrmon.
-
4. The drawing is by Miss Reiltin Murphy, National Museum of lreland'
s. Identified f1i vtlss fleen Farley, Natural History Division' National Museum of
Ireland.
6. Par. Kilmalkedar, bar. Corkaguiny: Ordnance Survey six-inch sheet no' 42'26'4
cms. from northern margin; 11.1 cms. from eastern margin'
THREE KERRY
EAMONN P. KELLY
t2
SOUTERRAINS
13
Waddell proposed that they were designed to impede adults while
allowing children to pass easily to a more secure location.8 Adults are
obliged to enter head first and this requirement has obvious
advantages for a defender stationed beyond the slab. If Waddell's
view is correct then the entrance slab in the Ballintermon souterrain
has been badly placed. A defender, retreating to the safety of
chamber 2, would be restricted in his effort to prevent an attacker
passing through the cut entrance by being himself obliged to operate
in the low narrow passage between the slab and the chamber.
One of the chambers in the Glantane souterrain was partly flooded
when investigated. The builders of the Ballintermon souterrain sought
to
ensure against this possibility by incorporating two drains into
their structure which, as earlier observed, may also have functioned
N
as ventilators.
The frequency with which features, such as drains, occur in Kerry
souterrains will not be known until a full survey of the monument
type has been conducted in the county. In Co. Cork, where a survey
has been done, dr6ins were observed in eight souterrains.e At Brackcloon a drain ran along the center of most of the structure's floor.
Elsewhere, as at Little Island, drains ran from the base of the wall in
much the same fashion as the Ballintermon example and, like the
latter, may also have performed the additional function of serving as
N
EPK
Fig. 5: Souterrain at Gallarus, plan and cross-sections.
COMMENT
indicate a similar cultural context. This being so, it is possible that
their points of difference may be sources of information as to their
relative function and date. As the Glantane souterrain was examined
in its entirety it is perhaps logical to use this as a 'typical' example
against which to compare the other structures. As has been shown,
the Glantane souterrain is an L-shaped structure. The chamber which
is at right angles to the other two is reached via a short passage and
also by means of a slab with an entrance cut into it. The Ballintermon example is similar, though in this case the slab is placed at the
opposite end of the passage. Similar entrance slabs are known from
other Kerry souterrains and a number are mentioned by Ryan.?
7. M. Ryan, 'A souterrain in Kealduff Upper Townland, Glenbeigh', Kerry Arch.
and Hist. Soc. Jn.9 (1976), 5-10.
I am grateful to Mr Mark Clinton for supplying me with references to cut-slab
entrances.
ventilation shafts.
The tiny chamber (chamber 3) at one extremity of the Glantane
souterrain provides a good comparison with the small chamber of the
Gallarus structure. There are some differences; for example, Gallarus
is roofed with two slabs rather than one and the walls of the Glantane
chamber are much more inclined. However, both are remarkable for
their diminutive scale and compare well in being both entered at one
corner by a passage set at approximately 45'. The passages adjoining
both incorporate orthostats in their wall construction.
The structure at Ballintermon was associated with a ringfort and
the Glantane structure may also have been. There was no evidence of
any such association in the case of the Gallarus example. Both Ballintermon and Gallarus are sited in similar locations on relatively flat
land well suited for agriculture. Both have a number of ringforts in
their immediate vicinity indicating intensive habitation during the
8.
J. Waddell, 'Notes on some Kerry souterrains', Kerry Arch. and Hist. Soc.
(1970), 1s
18.
Jn.3
9. I am gra.teful to Mr Patrick McCarthy, University College, Cork, for providing
me with informa.tion on the Cork souterrains and for allowing me refer to them in
advance
of his own publication.
14
EAMONN P. KELLY
Early Christian period. Glantane is in a very different location which
may suggest that its former occupants were engaged in a different
form of land utilisation. The density of ringforts in its vicinity is much
less than in that of the other two sites. The nearest earthwork to it is a
square enclosure which superficially resembles a Norman moated
grange.r0 Glasscock shows seventeen square enclosures in Co. Kerry
which may be moated sites" one of which is at the eastern end of the
Dingle peninsula.rr
Souterrains are generally regarded as dating to the period between
500 A.D. and 1000 A.D. but nothing was found in association with
any of the sites reported here to confirm this. The fragment of a mill-
stone found
at Ballintermon cannot definitely be related to
the
souterrain. Even if it had been found in situ in one of the walls it
would at best provide a terminus post quem for its construction. In
any event the millstone cannot itself be closely dated although the
type may have been used in Early Christian horizontal water-mills. A
millstone bearing similar decoration was found in the vicinity of a
souterrain a.t Raskeagh. Co. Louth.12 Another similar example comes
from Clogher West. Co. Limerick.l3
CONCLUSIONS
While close dating of the structures is not possible it is probable
that they were built during the early historic period between 500
A.D. and 1000 A.D. All three may, originally, have been associated
with ringforts. They seem to have served as refuges in times of danger
but were likely also to have been used as storage places.
There appears to be a large number of these structures on the
Dingle peninsula and the work of surveying ancient monuments
currently being conducted in the area should prove to be of
considerable assistance to our efforts to achieve a greater understanding ol their dating and function.
10. This is shown on the Ordnance Survey map as a small square field. Td.
Glantane: Ordnance Survey six-inch sheet no. 45.23,5 cms. from western margin;
29.3 cms. from northern margin.
11. R. E. Glasscock, 'Moated sites and deserted borroughs and villages: two
neglected aspects of Anglo-Norman settlement in lreland' in N. Stephens and R. E.
Glasscock (ed.), Irish Geographical Studies in Honour of E. Estyn Evens (Belfast
t97O). t62 7'.t.
2. National Museum ol Ireland file. I am grateful to Mr Gerard Millar, Dundalk,
for bringing this millstone to my attention.
13. I am gratefultoMissMaryCahill.NationalMuseumof Ireland,forinformation
[
about this millstone.