599 NMS sites 563 within protection zone 406 listed buildings 9 of 9 archaeological periods

Inishowen East is a barony of County Donegal, in the historical province of Ulster (Irish: Inis Eoghain Thoir), covering 501 km² of land. The barony records 599 NMS archaeological sites and 406 NIAH listed buildings, placing it at around the 19th percentile among 280 ROI baronies for sites per km². This means it is in the bottom fifth of all baronies for sites per km². Dated archaeological evidence runs from the Mesolithic through to the Modern, spanning 9 of 9 archaeological periods, placing the barony in the 94th percentile among 280 ROI baronies for chronological depth. This means it is in the top tenth of all baronies for chronological depth. The largest dated subset of recorded sites dates to the Early Medieval.

Detailed boundary map of INISHOWEN EAST barony, DONEGAL
Inishowen East boundary detail
Regional context map showing INISHOWEN EAST barony within DONEGAL
Inishowen East in regional context

Heritage at a glance

Percentile rankings throughout this profile compare each barony only against the other 279 Republic of Ireland baronies.

599
Recorded NMS sites
19th percentile
563
Within protection zone
94.0% of recorded sites
406
NIAH listed buildings
92nd percentile
501 km²
Barony area

The recorded heritage of Inishowen East

The National Monuments Service Sites and Monuments Record (SMR) is the statutory inventory of archaeological sites for the Republic of Ireland, maintained by the Department of Tourism, Culture, Arts, Gaeltacht, Sport and Media. Sites recorded here include earthworks, ringforts, megalithic tombs, ecclesiastical remains, and post-medieval features; not every record is legally protected, but each is registered as a monument of archaeological interest.

The National Monuments Service records 599 archaeological sites in Inishowen East, putting it at the 19th percentile among 280 ROI baronies for sites per km². This means it is in the bottom fifth of all baronies for sites per km². Protection coverage is near-universal — 563 sites (94%) fall within a recorded monument protection zone, indicating an extensively surveyed landscape. The record is dominated by prehistoric ritual monuments — standing stones, stone circles, and rock art (180 sites, 30% of the total), with defensive sites forming a substantial secondary presence (98 sites, 16%). Rock art is the most prevalent type, making up 21% of the barony's recorded sites (123 records) — well above the ROI average of 4% across all baronies where this type occurs. Rock art is geometric and other motifs carved on earthfast boulders or rock outcrops, mainly Bronze Age but with possible Neolithic origins. Other significant types include Standing stone (55) and Ringfort – rath (23). Standing stone is a deliberately set upright stone, used variously as a Bronze/Iron Age burial marker, route marker or commemorative monument; Ringfort – rath is an earthen ringfort enclosed by a bank and external ditch — the most common Early Medieval farmstead, broadly dated 500–1000 AD. Across the barony's 501 km², this gives a recorded density of 1.19 sites per km².

Most common monument types

Hover or tap a monument type to see its definition.

TypeCount
Rock art geometric and other motifs carved on earthfast boulders or rock outcrops, mainly Bronze Age but with possible Neolithic origins 123
Standing stone a deliberately set upright stone, used variously as a Bronze/Iron Age burial marker, route marker or commemorative monument 55
Ringfort – rath an earthen ringfort enclosed by a bank and external ditch — the most common Early Medieval farmstead, broadly dated 500–1000 AD 23
Cross-slab a stone slab inscribed with a cross, used as a grave-marker or memorial, dated pre-1200 AD 20
Ringfort – cashel the stone-walled equivalent of the rath, found mainly in upland or western areas, broadly dated 500–1000 AD 20
Cairn – unclassified a stone mound that cannot be assigned to a specific cairn type 18
Souterrain an underground stone-built passage and chamber, generally Early Medieval and often associated with ringforts as a defensive or storage feature 18
Ritual site – holy well a well or spring traditionally associated with a saint, often credited with healing properties; many trace earlier ritual origins but devotion is documented from the medieval period onwards 17

Chronological distribution

The dated archaeological record for Inishowen East spans from the Mesolithic through to the Modern, with activity attested across 9 of 9 archaeological periods. This places Inishowen East in the top 6% of ROI baronies for chronological depth — few baronies record evidence across as many distinct archaeological periods. Every period from earliest to latest is represented in the record — an unbroken sequence of dated activity across the full chronological span. Activity concentrates most heavily in the Early Medieval (124 sites, 32% of dated material), with the Early Bronze Age forming a secondary peak (109 sites, 28%). A further 207 recorded sites (35% of the overall NMS register for the barony) carry no period attribution — appearing as 'Unknown' in the bar chart below. This typically reflects either records that pre-date the standardised period vocabulary or sites awaiting specialist dating review, rather than a genuine absence of chronological evidence.

Mesolithic
8
Neolithic
38
Early Bronze Age
109
Middle Late Bronze Age
6
Iron Age
77
Early Medieval
124
Medieval
12
Post Medieval
2
Modern
16
Unknown
207

Sample of recorded monuments

Show 25 sample monuments (of 599 total)

A representative sample of 25 recorded monuments drawn from the barony’s 599 total NMS entries. Sites within a recorded monument protection zone and rarer site types are prioritised so the list shows a meaningful cross-section rather than only the most common type. Each entry shows the official Sites and Monuments Record reference number and the description published by the National Monuments Service.

Cave

SMR DG002-002003-BallygormanProtected

Cut into a rock face on the N shoreline of Malin Head.

Recorded by the Donegal Survey (Lacy et al 1983, 242, no. 1516) as follows: To the SW of the church (DG002-002001-) is a rock-cut cave, known as the 'Wee House…

Castle – tower house

SMR DG003-002001-CarrickabraghymedievalProtected

Carrickabraghy Castle: Probably 16th century in date this tower-house was occupied by Phelemy Brasleigh O'Doherty in 1600. Granted to Chichester at the time of the Plantation in 1611, it was let to 'Liuetent Hoan, who…

Megalithic tomb – portal tomb

SMR DG004-035—-TemplemoyleProtected

The monument, c. 3km W of Culdaff, is prominently sited toward the western end of a boggy ridge broken by rock outcrops. To the S and W is a fall to lower ground mainly devoted to pasture. The sea inlet of Trawbreaga…

Pillar stone

SMR DG004-052005-TemplemoyleProtected

Templemoyle ecclesiastical complex consists of a modern rectangular graveyard 22m N-S, 20.5m E-W. To the N is a sub-rectangular area 12m E-W, 10.4m N-S with a level interior enclosed by a stone wall 1m high…

Ritual site – holy/saint's stone

SMR DG010-011002-Straid (Straid Ed)Protected

This is believed to be the early ecclesiastical site of Culmaine (Gwynn and Hadcock 1970, 377). The site presently consists of a graveyard (DG010-011001-) surrounding a ruined 18th century church. 14m from the SE corner…

Anomalous stone group

SMR DG010-020—-TullynabratillyProtected

This feature, named 'Darby's Bed' on the original edition of the OS 6-inch map (1834), is shown but not named on the revised 6-inch map of 1848. It stands at the western edge of a stream and consists of two stones at…

Crannog

SMR DG010-036—-Meendoranearly_medievalProtected

A small island in Lough Fad 14m N-S × 13m E-W apparently consisting of an artificial mound of stones rises 1m out of the water at present.

The above description was derived from the 'Archaeological Survey of County…

Architectural feature

SMR DG011-035002-Churchland QuartersProtected

The Carndonagh complex (National Monument number 271) is the site of one of the main early ecclesiastical centres in Donegal. It consists of a modern graveyard (DG011-035007-) surrounding the 18th century Church of…

Penitential station

SMR DG011-049007-Carrowmore (Gleneely Ed)Protected

Carrowmore ecclesiastical complex has been identified with Both Chonais an early monastic site (Gwynn and Hadcock 1970, 30). The site consists of a series of monuments (DG011-049—-/049010-) divided by a modern road,…

Inscribed stone

SMR DG012-002003-CloncaProtected

Set into the wall of Clonca church (DG012-002001-), National Monument (no. 25).
Built into the external wall face at the N end of the W wall is a small stone (L 0.32; H 0.15m) bearing a mallet and chisel device above…

Building

SMR DG012-007002-KnockergranaProtected

A standing stone is marked here on the OS 6-inch maps. It is 1.96m high. The stone stands in the midst of a large complex of stone field walls and stone enclosures some of which are buried under or sticking up out of…

Cross-inscribed pillar (present location)

SMR DG012-017001-Drumaville (Tremone Ed)Protected

A cross-inscribed pillar stone (DG012-017001-) 1.1m high × 0.39m maximum width at the upper half. There is a plain Latin cross with a T-bar terminal at the bottom, and the upper half of a circle joining the top and the…

Shrine

SMR DG021-008004-CoolyProtected

The early ecclesiastical site here consists of a sub-rectangular shaped graveyard inside of which are a number of earlier features. The site is located on excellent land sloping to Lough Foyle to the E and is…

Bridge

SMR DG021-009—-GlencrowProtected

In the grounds of Gulladoo House are three bridges. Two of them cross the River Bredagh which goes through a U-turn at this point. The river no longer passes under the third bridge. This was pointed out to us as the…

Cross-slab (present location)

SMR DG021-011—-BallynallyProtected

Situated in the parochial house, Moville for safe keeping. Small cross-slab, measuring 0.61m long by 0.15m widest. It tapers to 0.08m at the end. The cross is carved on the upper (wider) end and is 0.37m long x 0.14m…

Castle – Anglo-Norman masonry castle

SMR DG022-003—-Eleven BallyboesProtected

Greencastle: Greencastle was the principal Norman castle in NW Ulster and was built by the 'Red' Earl of Ulster, Richard de Burgo, in 1305. The castle, then known as Northburgh or Newcastle, was captured by the Scots in…

Font (present location)

SMR DG004-006—-LagProtected

A short right-angled stretch of masonry in the graveyard (DG004-005003-) adjacent to the modern church seems to be all that survives of a pre-17th century church (DG004-005001-) here. A small stone cross (DG004-005002-)…

House – 18th/19th century

SMR DG031-007002-WhitecastleProtected

This is Whitecastle, 'a late 18th century house' (Rowan 1979, 477).

The above description was published in the 'Archaeological Survey of County Donegal. A description of the field antiquities of the County from the…

Leacht

SMR DG022-002006-CarrowhughProtected

'Kilblaney Burial Ground' (DG022-002005-) consists of a subrectangular enclosure c. 25m E-W and c. 15m N-S defined on three sides by a wall and on the fourth by a cliff edge. Near the centre of the graveyard are three…

Cross – High cross (present location)

SMR DG011-035009-Churchland QuartersProtected

This monument number records the present location of a high cross, which is a National Monument in state ownership (no. 271). The high cross, and the two stone sculptures (DG011-035010-; DG011-035011-) associated with…

Fulacht fia

SMR DG004-084—-Drumcarbitbronze_ageProtected

Testing was carried out by Angela Wallace of Connacht Archaeological Services, under licence No. 08E0226 in advance of two adjacent developments with combined green areas at Drumcarbit, Malin. The southern development…

Rock scribing

SMR DG011-065001-CarndoaghProtected

On poorly drained land with good views of Trawbreaga Bay to N. Earth-fast boulder decorated with prehistoric rock art (DG011-065—-) 3m to S. Rock outcrop protruding from N edge of cliff face forming a small cave or…

Cairn – burial cairn

SMR DG011-016001-GlenmakeeProtected

Situated on rise of ground with good views to N. Present remains consist of standing stone (DG011-016—-) rising from SE side of possible low flat-topped cairn (diam. 7m N-S; H 0.4m) with kerb stones visible along…

Burnt mound

SMR DG012-048—-Cloncabronze_ageProtected

In pasture, located on the E bank of a canalised stream (Wth base c. 1.2m; D c. 1.8m). The ground immediately around the mound is damp and lowlying, but rises very gradually to E.
This burnt mound appears to have been…

Rock art

SMR DG003-006—-Carrowreagh Or Craignacallybronze_ageProtected

Described in the Donegal Survey (Lacy et al. 1983, 99, no.651) as 'Two sets of concentric circles were noted on a slab of rock. It is located in an area of extensive rock outcrop and bog on the E slopes of…

Listed buildings

The National Inventory of Architectural Heritage (NIAH) is a state survey appraising buildings of architectural, historical, archaeological, artistic, cultural, scientific, social, or technical interest. Each surveyed structure receives a rating from International (the highest, for buildings of European importance) through National, Regional, Local, and Record-Only.

The National Inventory of Architectural Heritage records 406 listed buildings in Inishowen East, placing it in the top 8% of ROI baronies for listed-building density. All recorded buildings carry Regional or lower grading; the barony does not contain any structures appraised as being of National or International architectural importance. Construction dates concentrate most heavily in the Victorian (1830-1900) period. The most-recorded building type is house (224 examples, 55% of the listed stock).

Terrain and environment

Mean elevation across the barony is 123m — the 74th percentile among 280 ROI baronies for elevation. This means it is in the top third of all baronies for elevation. This is a relatively elevated landscape by ROI standards. Elevation matters for heritage because higher-altitude baronies typically favour defensive monuments — ringforts and hilltop forts placed on prominent ground — while lowland baronies are more likely to carry the dense settlement and church networks of intensive agricultural landscapes. The barony reaches 612m at its highest point — a vertical span of more than 489m within its boundary, indicating significant topographic diversity. Mean slope is 6.5° — the 88th percentile among 280 ROI baronies for slope. This means it is in the top fifth of all baronies for slope. This is consistently steep terrain by ROI standards, the kind of landscape that tends to preserve upstanding archaeological features well. Slope is a key control on both land use and archaeological preservation: steep ground resists ploughing and tends to preserve earthworks intact, while gentle slopes favour intensive cultivation that damages or destroys surface archaeology over time. Localised maximum slopes reach 18°, typical of stream-cut valleys, escarpments, or coastal bluffs within the wider landscape. The Topographic Wetness Index averages 9.7, the 12th percentile among 280 ROI baronies for wetness. This means it is in the bottom fifth of all baronies for wetness. This is well-drained ground by ROI standards — typical of upland or steeply-sloping country that sheds water rapidly. Drainage matters for heritage because poorly-drained ground preserves organic archaeology (wooden trackways, leather, textiles, and on rare occasions human remains) far better than free-draining soil; well-drained ground favours arable use but destroys organic material rapidly. The land cover is dominated by improved grassland (86%) and woodland (12%). In overall character, this is steeply-sloping terrain at modest elevation, with land use dominated by improved grassland.

Terrain measurements

Mean elevation123.4 m
Max elevation612.4 m
Mean slope6.5°
Wetness index (TWI)9.68 12th pct
Grassland85.9%
Woodland11.6% 23rd pct

Where this barony sits in the Republic of Ireland

Drainage
12th
Woodland
23rd

Geology and preservation

Bedrock geology shapes the landscape long before any settlement begins — controlling soil drainage, agricultural potential, the survival of upstanding monuments, and the preservation of buried archaeology. The figures below come from the Geological Survey Ireland 1:100,000 bedrock map.

The bedrock underlying Inishowen East is predominantly schist (41% of the barony by area), laid down during the Precambrian period (97% by area, over 540 million years ago). Schist forms upland, often steep terrain with thin soils that limited agriculture but favoured the construction of stone-built monuments and field walls. Schist landscapes commonly carry megalithic monuments and prehistoric ritual sites. A substantial secondary geology of grits (22%) and quartzite (14%) adds further variety to the underlying landscape. With 8 distinct rock types mapped, the barony sits in the top third of ROI baronies for geological diversity (80th percentile) — typically a sign of complex tectonic history or coastal mosaics of differing rock units.

Dominant geological periodPrecambrian (97%)
Dominant rock typeSchist (41%)
Mapped formations16
Distinct rock types8 80th pct for diversity

Rock type composition

Schist
41%
Grits
22%
Quartzite
14%
Grit With Schist
13%
Grit
4%

Largest mapped unit: Inishowen Head Grits and Phyllites Formation (22% of the barony)

Placename evidence

Logainm records 13 heritage-diagnostic placenames for Inishowen East, a modest sample drawn predominantly from the townland record. The dominant stratum is pre-christian defensive. The most frequent diagnostic roots are dún- (3) and caiseal- (2). With a sample of this size the count should be treated as indicative rather than definitive.

Pre-Christian / Early Medieval Defensive

RootCountMeaning
dún-3hilltop or promontory fort
caiseal-2stone ringfort
ráth-1earthen ringfort

Early Christian Ecclesiastical

RootCountMeaning
cill-2church (early)
teampall-2church (later medieval)
domhnach-1pre-Patrician or earliest Patrician church

Burial, Ritual, and Norse-Contact

RootCountMeaning
carn-2cairn
gall-1foreigner — Norse settlement marker

About this profile

Click any section below to expand.

What is a barony?

A barony is a historic administrative unit in Ireland, broadly equivalent to an English hundred. The 280 baronies used here are from the OSi 2019 National Statutory Boundaries (generalised 20m), covering the 26 counties of the Republic of Ireland. Baronies derive from the Norman period, were formalised in the 17th century, and have not been redrawn for statistical purposes. They vary enormously in area, from compact urban baronies in Dublin to vast upland baronies in Connacht, and should not be compared by raw site count without accounting for area differences.

What counts as a site?

This profile combines three distinct heritage registers, each with its own definition of what constitutes a recordable site:

  • Archaeological sites (NMS). The National Monuments Service Sites and Monuments Record (SMR) catalogues every known archaeological monument or site of archaeological interest in the Republic, from prehistoric burial mounds and ringforts to medieval churches and post-medieval defensive works. Inclusion does not require legal protection — only that the site has been identified, surveyed, and assessed as having archaeological value. A separate subset of these sites lies within a recorded protection zone, which gives them statutory protection under the National Monuments Acts.
  • Listed buildings (NIAH). The National Inventory of Architectural Heritage records buildings of architectural, historical, archaeological, artistic, cultural, scientific, social, or technical interest. Each surveyed structure is appraised on a five-tier scale: International, National, Regional, Local, and Record-Only. The NIAH appraisal is informational rather than strictly statutory, but it underpins local-authority Record of Protected Structures (RPS) listings.
  • Heritage placenames (Logainm). Logainm is the authoritative database of Irish placenames maintained by the Placenames Branch. This profile applies a heritage-diagnostic classifier to the Irish-language form of each townland name, flagging roots that signal defensive sites (ráth-, lios-, dún-, caiseal-, cathair-), ecclesiastical foundations (cill-, teampall-, domhnach-, mainistir-), prehistoric burial-ritual features (tuaim-, carn-, leaba-), or Norse-contact settlement (gall-). Townlands without one of these diagnostic roots are not flagged here — they may still carry historical significance, but that significance is not encoded in the name itself.
Editorial principles

The narrative sections of this profile follow several explicit principles:

  • Evidential. Every claim about this barony’s heritage character is anchored in the underlying register data. Where a site count, a placename count, or a percentile rank is cited, it is computed from the source datasets at export time, not estimated.
  • Comparative. Counts and metrics are reported alongside their percentile rank against the other 279 ROI baronies. A barony with 50 ringforts in absolute terms could be unusually high or unusually low depending on its size and regional context; percentile ranking removes that ambiguity.
  • Transparent on limits. Where a register has known coverage gaps, survey biases, or data-quality issues that affect this barony’s figures, the profile flags them rather than presenting the numbers as definitive.
  • No interpretation beyond what the data supports. The narrative does not speculate about historical events, social dynamics, or cultural meaning beyond what the recorded heritage and placename evidence directly attests.
Data caveats and limits
  • NMS Sites and Monuments Record is the product of survey campaigns conducted at different intensities across different counties and decades. Some baronies have been surveyed more thoroughly than others, and absolute counts should be read in that light. Sites destroyed by development before survey are typically not represented; sites in heavily forested or upland terrain are sometimes under-recorded.
  • NIAH coverage is broadly complete for the Republic of Ireland but the survey was conducted on a rolling county-by-county basis, and the most recent appraisal date varies. Buildings demolished or substantially altered after their original survey may still appear in the register; conversely, recent buildings of merit may not yet have been appraised.
  • Logainm classification applies a deliberately conservative pattern-matching approach to the Irish-language townland forms. The classifier prioritises true positives over recall: a townland may carry a heritage signal that the classifier doesn’t recognise, particularly where the diagnostic root has been heavily anglicised or where the townland name draws on a less common term. The 60,000+ townland records and ~9,800 classified placenames give a substantial signal at barony scale, but individual townland names should be checked against Logainm directly for definitive interpretation.
  • Period attribution. The chronological distribution reflects only those NMS sites that carry a recognised period attribution in the source data. Sites listed as “Unknown” period are excluded from the dated subset.
  • Boundary changes. Some baronies have undergone minor boundary adjustments since their 19th-century definition; the OSi 2019 generalised boundaries used here are the current statutory definition and may differ slightly from historical maps in border areas.
  • Bedrock geology is mapped at 1:100,000 scale, which means local variation within a barony — small pockets of different rock type, mineral veins, alluvium overlying bedrock — is generalised. The dominant-system and rocktype figures are area-weighted, so a barony reading “70% Carboniferous limestone” may still contain small but archaeologically important pockets of older or younger rock. Around 3% of GSI polygons do not match the lexicon and contribute no rocktype or system attribution.
Data sources
  • National Monuments Service — Sites and Monuments Record (SMR)
    Contributes archaeological site records, classifications, periods, and recorded protection-zone status.
    © Department of Housing, Local Government and Heritage · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data.gov.ie/dataset/national-monuments-service-archaeological-survey-of-ireland
  • National Inventory of Architectural Heritage (NIAH)
    Contributes listed-building records and architectural-significance grades.
    © Department of Housing, Local Government and Heritage · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data.gov.ie/dataset/national-inventory-of-architectural-heritage-niah-national-dataset
  • Logainm — Placenames Database of Ireland
    Contributes Irish-language and English townland names, civil parish associations, and barony assignments for the heritage-placename classifier.
    © Government of Ireland, Placenames Branch · Licence: Creative Commons Attribution-NoDerivs 3.0 Ireland (CC BY-ND 3.0 IE)
    https://www.logainm.ie/
  • Ordnance Survey Ireland — National Statutory Barony Boundaries 2019
    Contributes the canonical 280 barony boundaries (generalised 20m).
    © Ordnance Survey Ireland / Government of Ireland · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data-osi.opendata.arcgis.com/
  • EURODEM — European Digital Elevation Model
    Contributes elevation, slope, and topographic-wetness statistics, plus the hillshade rendering on each barony’s topographic map.
    © Maps for Europe · Licence: Open data
    https://www.mapsforeurope.org/datasets/euro-dem
  • ESA WorldCover
    Contributes land-cover classifications for grassland, woodland, cropland, wetland, urban, and water statistics.
    © European Space Agency · Licence: Creative Commons Attribution 4.0 (CC BY 4.0)
    https://esa-worldcover.org/en
  • Geological Survey Ireland — 1:100,000 Bedrock Geology
    Contributes bedrock geological data: dominant geological system (Carboniferous, Devonian, etc.), rock-type composition, and formation-level mapping, with the GSI Bedrock Lexicon providing descriptive attributes.
    © Geological Survey Ireland · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://www.gsi.ie/en-ie/data-and-maps/Pages/Bedrock.aspx

Explore more: Search any of the 280 ROI baronies, browse by historical province, or read the methodology and data sources for the full Republic of Ireland Heritage Tool.

Spotted an error? This dataset is updated continuously. Email contact@danielkirkpatrick.co.uk with corrections, missing records, or suggestions for improvement.