113 NMS sites 94 within protection zone 61 listed buildings 7 of 9 archaeological periods

Kilcoursey is a barony of County Offaly, in the historical province of Leinster (Irish: Cill Chuairsí), covering 78 km² of land. The barony records 113 NMS archaeological sites and 61 NIAH listed buildings, placing it at around the 31st percentile among 280 ROI baronies for sites per km². This means it is in the bottom third of all baronies for sites per km². Dated archaeological evidence runs from the Early Bronze Age through to the Modern, spanning 7 of 9 archaeological periods, placing the barony in the 44th percentile among 280 ROI baronies for chronological depth. This means it is in the lower half of all baronies for chronological depth. The largest dated subset of recorded sites dates to the Iron Age. Logainm flags 23 placenames in the barony as carrying a recognised heritage root; the largest share — around 91% — are names associated with early Christian church and monastic foundations.

Detailed boundary map of KILCOURSEY barony, OFFALY
Kilcoursey boundary detail
Regional context map showing KILCOURSEY barony within OFFALY
Kilcoursey in regional context

Heritage at a glance

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

113
Recorded NMS sites
31st percentile
94
Within protection zone
83.2% of recorded sites
61
NIAH listed buildings
30th percentile
78 km²
Barony area

The recorded heritage of Kilcoursey

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 113 archaeological sites in Kilcoursey, putting it at the 31st percentile among 280 ROI baronies for sites per km². This means it is in the bottom third of all baronies for sites per km². Of these, 94 (83%) fall within a recorded monument protection zone. The dominant category is defensive sites — ringforts, enclosures, hillforts, and stone forts (58 sites, 51% of the record). The most diagnostically specific type is Ringfort – rath (12 records, 11% of the barony's NMS total) — compared to an ROI average of 20% across all baronies where this type occurs. Ringfort – rath is an earthen ringfort enclosed by a bank and external ditch — the most common Early Medieval farmstead, broadly dated 500–1000 AD. The broader 'Enclosure' classification — which catches unclassified ringforts and field enclosures — accounts for a further 26 records (23%) and reflects the difficulty of sub-classifying degraded earthworks from surface evidence alone. Across the barony's 78 km², this gives a recorded density of 1.45 sites per km².

Most common monument types

Hover or tap a monument type to see its definition.

TypeCount
Enclosure a banked or ditched feature of uncertain type, used as a catch-all where the original function cannot be determined from surface evidence 26
Ringfort – rath an earthen ringfort enclosed by a bank and external ditch — the most common Early Medieval farmstead, broadly dated 500–1000 AD 12
Castle – unclassified a castle whose form cannot be precisely classified, dating somewhere between the late 12th and 16th centuries 4
Church a building used for public Christian worship, of any date from c. 500 AD onwards 4
Earthwork an unclassified earthen structure with no diagnostic features that allow a more specific classification 4
Bawn the defended courtyard of a medieval house, tower house or fortified house 4
Fulacht fia a horseshoe-shaped Bronze Age burnt mound built around a sunken trough beside a water source, traditionally interpreted as a cooking site 4
Mound an artificial earthen elevation of unknown date and function that cannot be classified as another known monument type 3

Chronological distribution

The dated archaeological record for Kilcoursey spans from the Early Bronze Age through to the Modern, with activity attested across 7 of 9 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 Iron Age (31 sites, 38% of dated material), with the Early Medieval forming a secondary peak (23 sites, 28%). A further 32 recorded sites (28% 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
0
Neolithic
0
Early Bronze Age
10
Middle Late Bronze Age
5
Iron Age
31
Early Medieval
23
Medieval
5
Post Medieval
6
Modern
1
Unknown
32

Sample of recorded monuments

Show 25 sample monuments (of 113 total)

A representative sample of 25 recorded monuments drawn from the barony’s 113 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.

Barrow – bowl-barrow

SMR OF001-010—-KilfoylanProtected

Situated on top of a hillock in undulating countryside. Small conical shaped earthen mound (top diam. 2.5m N-S; base diam. 5.2m N-S; H 1.2m) with several large rock protruding from the surface of the mound.

The above…

Water mill – horizontal-wheeled

SMR OF002-019—-Ballykilleen (Kilcoursey By.)Protected

No surface tace visible of watermill which was excavated by A.T. Lucas in 1955. Dated dendrochonologically to c. AD. 636 +/- 9 (pers. comm. M. Baillie).

The above description is derived from the published…

Castle – ringwork

SMR OF002-021—-Cappydonnell BigProtected

On a slight rise in undulating countryside. Subcircular raised platform (dims. 50m N-S; 43m E-W; H 1.7m) enclosed by a poorly preserved earth and stone bank which has been reduced to a scarp in most places, intervening…

Ringfort – cashel

SMR OF002-024—-Gorteen (Kilcoursey By.),Kilfoylanearly_medievalProtected

On a natural rise of ground with good views in all directions. Natural hill which is scarped at its base with dry stone wall facing visible from NE through E to SW. The interior of the ringfort (57m N-S; 53m E-W)…

Moated site

SMR OF002-025—-Gorteen (Kilcoursey By.)medievalProtected

No visible surface remains, depicted as a sub-rectangular enclosure or earthwork on the 1838 ed. of the OS 6-inch map and not indicated on the 1908 ed. of the OS 6-inch map. The shape of the monument on the 1838 OS…

Ecclesiastical enclosure

SMR OF002-030—-Kilmanaghanearly_christianProtected

Located on high ground with extensive views of undulating countryside. Depicted as a rectangular church (OF002-030001-) standing in the centre of an oval-shaped shaped graveyard (OF002-030002-) on the 1838 ed. OS 6-inch…

Cross-inscribed stone

SMR OF002-030003-KilmanaghanProtected

Located on high ground with extensive views of undulating countryside. Well preserved church ruins (OF002-030001-) standing in centre of an oval-shaped graveyard (OF002-030002-) which may follow the line of an Early…

Hut site

SMR OF008-002—-CloghatannyprehistoricProtected

Rectangular shaped stone hut situated on the W bank of Cloghtanny river about 100m north of Bolart Corn mill. Only the grass covered wall footings survive of a small rectangular building orientated (int. dims. 12.4m…

Religious house nunnery – unclassified

SMR OF008-009002-Kilbride (Kilcoursey By.),LissaniskyProtected

The medieval ruins of the church (OF008-009001-) of Kilbride [Cill Bhríde], known locally as ‘St. Bridget’s Abbey’ forms the N boundary of Kilbride graveyard (OF008-009003-) with the site of a possible convent or church…

Cross – Termon cross

SMR OF008-010—-KilcourseyProtected

No evidence of any cross in the area marked on the 6 inch OS 6-inch map. This cross has long since dissappeared as Davies recalls in the ITA survey
of 1942.
Described in 1942 as 'Ths site of the cross, which has…

Castle – tower house

SMR OF008-016—-KilcourseymedievalProtected

Located on top of a hill with good extensive views in all directions. The hill is steeply sloped at S which may have acted as a natural form of defence for the castle. The tower house is built of roughly coursed…

Children's burial ground

SMR OF008-017—-Erry (Armstrong)medievalProtected

Located on flat land in area of undulating countryside. Rectangular shaped earthen platform (dims. N-S 19m; E-W 30m and varies in ext. height from 0.5m to 1m defined by a scarp). The platform slopes from E to W and…

Barrow – ring-barrow

SMR OF002-021001-Cappydonnell Bigbronze_ageProtected

Site-specific test-trenching was carried out by Tim Coughlan of Irish Archaeological Consultancy Ltd., under licence No. E2653 as part of an archaeological mitigation programme associated with the N6 Kilbeggan to…

Burial

SMR OF002-021005-Cappydonnell BigProtected

Site-specific test-trenching was carried out by Tim Coughlan of Irish Archaeological Consultancy Ltd., under licence No. E2653 as part of an archaeological mitigation programme associated with the N6 Kilbeggan to…

Mass-rock

SMR OF008-068—-Erry (Maryborough)Protected

Located on high ground with good views in all directions. Large natural rock outcrop marked on OS 25-inch map as 'Ballinough Big Rock' which was used during penal times as a mass rock.

Compiled by: Caimin…

Habitation site

SMR OF002-053002-ToberProtected

A Bronze Age house (OF002-053001-) with associated settlement features was excavated under licence No. E2677 in the townland of Tober, by Irish Archaeological Consultancy Ltd (I.A.C.) as part of an archaeological…

Enclosure – large enclosure

SMR OF007-344—-Tinamuck EastProtected

Outline of circular shaped area (approx. diam. 65m) defined by a fosse and intersected at W by a field boundary running N-S which curves around the enclosing element of the monument. This field boundary marks the…

Crannog

SMR OF001-001—-Ballynahinchearly_medievalProtected

A small island in Ballinderry Lough excavated by Hencken in 1942. The site consisted of two superimposed occupation layers, the lower layer dating to the Late Bronze Age and the upper one to the Early Christian period.…

Bullaun stone

SMR OF001-007—-Shanballynakillearly_christianProtected

Not visible at ground level. Unable to locate this bullaun stone. Identified during fieldwork on March 25th 1988 by staff in the SMR office. Described in 1988 as a small bullaun which was covered in moss and was located…

Crannog

SMR OF002-002—-Cartron Glebeearly_medievalProtected

Not visible at ground level. Possible Crannog site identified by Victor Buckley in 1980 and which may have been destroyed during drainage operations carried out in the area during the 1980's.

The above description is…

Graveyard

SMR OF002-030002-KilmanaghanProtected

Located on rise of ground with extensive views of undulating countryside. Depicted as a rectangular church (OF002-030001-) standing in the centre of an oval-shaped shaped graveyard (dims. 45m N-S; 56m E-W) on the 1838…

Graveyard

SMR OF008-009003-Kilbride (Kilcoursey By.),LissaniskyProtected

The medieval ruins of the church (OF008-009001-) of Kilbride [Cill Bhríde], known locally as ‘St. Bridget’s Abbey’ forms the N boundary of Kilbride graveyard with the site of a possible convent / nunnery…

Burial ground

SMR OF008-012—-LehinchProtected

No surface trace visible of any archaeological feature in the area excavated in 1978 by the National Museum. The National Museum of Ireland recorded that 'in March 1978 three human skeletons and a bowl were discovered…

Ring-ditch

SMR OF008-012001-Lehinchbronze_ageProtected

No surface trace visible of any archaeological feature in the area excavated in 1979 by the National Museum. A small pennanular ditch (diam. 4m) was discovered to the S of the burials (Waddell 1990, 129). The…

Enclosure

SMR OF001-004—-Newtown (Kilcoursey By., Gorteen Ed)Protected

No evidence of any archaeological site in the area marked on the aerial photograph taken in 1973 (GSI N 577/8).

The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin:…

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 NIAH records 61 listed buildings in Kilcoursey (30th percentile across ROI baronies). 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 (26 examples, 43% of the listed stock).

Terrain and environment

Mean elevation across the barony is 62m — the 24th percentile among 280 ROI baronies for elevation. This means it is in the bottom third of all baronies for elevation. This is a relatively low-lying 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. Mean slope is 2.5° — the 28th percentile among 280 ROI baronies for slope. This means it is in the bottom third of all baronies for slope. 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. The Topographic Wetness Index averages 11.5, the 74th percentile among 280 ROI baronies for wetness. This means it is in the top third of all baronies for wetness. 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 (81%) and woodland (15%). In overall character, this is low-lying, gently-sloping terrain — characteristic of Ireland's central plain and coastal lowlands, with land use dominated by improved grassland.

Terrain measurements

Mean elevation61.6 m
Max elevation101.6 m
Mean slope2.5°
Wetness index (TWI)11.48 74th pct
Grassland80.9%
Woodland15.4% 47th pct
Cropland1.7%
Urban land1.9% 75th pct

Where this barony sits in the Republic of Ireland

Drainage
74th
Woodland
47th

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 Kilcoursey is predominantly limestone (100% of the barony by area), laid down during the Carboniferous period (100% by area, around 359 to 299 million years ago). Limestone is the most heritage-rich bedrock in Ireland. It supports fertile, well-drained soils that favoured dense Early Medieval settlement and Norman manorial agriculture, and it weathers into karst features — sinkholes, caves, swallow holes, and souterrains — that frequently carry archaeology. Where peat overlies limestone, organic preservation can be exceptional. The single largest mapped unit is the Waulsortian Limestones (80% of the barony's bedrock). With only 1 distinct rock type mapped, the barony is geologically uniform compared to the rest of the Republic (4th percentile for diversity) — a single coherent bedrock landscape.

Dominant geological periodCarboniferous (100%)
Dominant rock typeLimestone (100%)
Mapped formations3
Distinct rock types1 4th pct for diversity

Largest mapped unit: Waulsortian Limestones (80% of the barony)

Placename evidence

Logainm records 23 heritage-diagnostic placenames for Kilcoursey, drawn from townland and civil-parish names across the barony. The dominant stratum is Early Christian ecclesiastical — cill-, teampall-, and domhnach-prefixed names that record the dense network of early church foundations established between the fifth and tenth centuries. The leading diagnostic roots are cill- (19 — church), lios- (1 — ringfort or enclosure), and dún- (1 — hilltop fort or promontory fort). This is below the ROI average of 30.7 heritage placenames per barony, suggesting either lighter survey coverage or a townland-naming tradition that draws more on generic landscape vocabulary. Logainm records 71 placenames for Kilcoursey (predominantly townland names). Of these, 23 (32%) carry one of the diagnostic Gaelic roots tracked above; the remainder draw on more generic landscape vocabulary that does not encode a heritage period.

Pre-Christian / Early Medieval Defensive

RootCountMeaning
lios-1ringfort or enclosure
dún-1hilltop or promontory fort

Early Christian Ecclesiastical

RootCountMeaning
cill-19church (early)
tobar-1holy well
cillín-1unconsecrated burial ground
Grounding History report mockup

Explore further

Grounding History: 10 Maps of Northern Ireland’s Past

If you’re interested in Irish heritage more widely, the companion report for Northern Ireland brings together the analysis of all 462 NI wards into one place through 10 high-quality maps — covering monument density, archaeological periods, placename heritage, terrain, wetland, and the historic landscape at first survey. Take a look.

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.