812 NMS sites 722 within protection zone 164 listed buildings 9 of 9 archaeological periods

Ballynahinch is a barony of County Galway, in the historical province of Connacht (Irish: Baile na hInse), covering 790 km² of land. The barony records 812 NMS archaeological sites and 164 NIAH listed buildings, placing it at around the 14th 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. Logainm flags 24 placenames in the barony as carrying a recognised heritage root; the largest share — around 54% — are names associated with pre-christian defensive.

Detailed boundary map of BALLYNAHINCH barony, GALWAY
Ballynahinch boundary detail
Regional context map showing BALLYNAHINCH barony within GALWAY
Ballynahinch in regional context

Heritage at a glance

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

812
Recorded NMS sites
14th percentile
722
Within protection zone
88.9% of recorded sites
164
NIAH listed buildings
70th percentile
790 km²
Barony area

The recorded heritage of Ballynahinch

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 812 archaeological sites in Ballynahinch, putting it at the 14th percentile among 280 ROI baronies for sites per km². This means it is in the bottom fifth of all baronies for sites per km². A sparse recorded total of this kind in Ireland often reflects survey priority rather than genuine absence of past activity. Of these, 722 (89%) fall within a recorded monument protection zone. The record is dominated by ecclesiastical sites — churches, graveyards, and holy wells (201 sites, 25% of the total), with defensive sites forming a substantial secondary presence (93 sites, 11%). Cross-slab is the most prevalent type, making up 7% of the barony's recorded sites (59 records) — well above the ROI average of 5% across all baronies where this type occurs. Cross-slab is a stone slab inscribed with a cross, used as a grave-marker or memorial, dated pre-1200 AD. Other significant types include House – indeterminate date (59) and Enclosure (45). House – indeterminate date is a habitation building whose date cannot be determined from available evidence; Enclosure is a banked or ditched feature of uncertain type, used as a catch-all where the original function cannot be determined from surface evidence. Across the barony's 790 km², this gives a recorded density of 1.03 sites per km².

Most common monument types

Hover or tap a monument type to see its definition.

TypeCount
Cross-slab a stone slab inscribed with a cross, used as a grave-marker or memorial, dated pre-1200 AD 59
House – indeterminate date a habitation building whose date cannot be determined from available evidence 59
Enclosure a banked or ditched feature of uncertain type, used as a catch-all where the original function cannot be determined from surface evidence 45
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 41
Graveyard a burial area associated with a church, in use from the medieval period onwards 35
Church a building used for public Christian worship, of any date from c. 500 AD onwards 34
Field boundary a continuous bank, wall or drain marking the limit of a field, of any date from the Neolithic onwards 30

Chronological distribution

The dated archaeological record for Ballynahinch spans from the Mesolithic through to the Modern, with activity attested across 9 of 9 archaeological periods. This places Ballynahinch 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 (147 sites, 34% of dated material), with the Iron Age forming a secondary peak (106 sites, 24%). A further 374 recorded sites (46% 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
3
Neolithic
44
Early Bronze Age
75
Middle Late Bronze Age
20
Iron Age
106
Early Medieval
147
Medieval
20
Post Medieval
14
Modern
9
Unknown
374

Sample of recorded monuments

Show 25 sample monuments (of 812 total)

A representative sample of 25 recorded monuments drawn from the barony’s 812 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.

Cliff-edge fort

SMR GA009-012—-Curragh (Ballynahinch By.)Protected

On a prominent headland to S of Renvyle Point. Known locally as Cathair an Dúin, it is an oval area (90m by 50m), sloping steeply to N from the cliff edge, defined by a massive revetted scarp (H 9m), a fosse (Wth 6-10m)…

Earthwork

SMR GA009D028—-WestquarterProtected

On a steep N-facing slope overlooking the mouth of Ballynakill Harbour. A poorly preserved subrectangular structure (L 7.4m, Wth 1.3-1.6m), aligned WNW-ESE, and defined by set boulders (H 0.45m max.). The remains are…

Sundial

SMR GA022-052—-MoorneenProtected

On a natural rise overlooking Cleggan Bay to the N and immediately to the SW of a roadway. Indicated and named 'Sun Dial' on the 1898 re-survey of the OS 6-inch map. No visible surface trace survives. It was probably…

Stone circle

SMR GA022-067—-Streamstown Or Barratroughbronze_ageProtected

On the summit of a hill overlooking the inner reaches of Streamstown Bay to SW. Two stones are aligned NE-SW and 1.75m apart. Both stones are of schist. The N stone is triangular in plan (H 1.1m) and S stone is…

Icehouse

SMR GA023-001—-Addergoole (Ballynahinch By.)Protected

In bogland on the S side of Kylemore valley, circa 200m to the SE of ‘Kylemore Farm Yard’. Only the roofless shell of this rectangular icehouse (NE-SW c. 10m; NW-SE c. 5m), which appears to be half buried in the bog,…

Mausoleum

SMR GA023-012—-LemnaheltiaProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Rock shelter

SMR GA023-013—-LemnaheltiaProtected

In oak woodland interspersed with rhododendron, on an extremely steep S-facing slope. Named ‘Taghaillia’ (Cliff House) in Gothic script on the 1839 edition and 1898 resurvey of the OS 6-inch map. Recorded by Killanin…

Prison

SMR GA035-021—-ClifdenProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Road – class 3 togher

SMR GA036-022—-Derrycunlaghbronze_ageProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Inscribed stone

SMR GA050-030—-RoundstoneProtected

Built into the outer face of what was originally the N gable of the fish curing station in Roundstone. An extension was subsequently built against the gable. An inscribed stone bearing the date 1731 and a number of…

Memorial stone

SMR GA064-003—-An Cnoc BuíProtected

In a small tree plantation in bogland. This inscribed plaque was recorded by Robinson (1985, 20-21) who noted it below a pigeon loft in one of the gable walls of a building that had formerly been stables but was…

Mound

SMR GA009B002002-CloonamoreProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Mine – copper

SMR GA021-023—-High IslandProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Industrial site

SMR GA021-029—-High IslandProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Mill – unclassified

SMR GA035-003002-Ardagh (Ballynahinch By.),KillymongaunProtected

In a densely wooded area. Named ‘Old Mill’ on the 1838 edition of the OS 6-inch map and depicted as a building, aligned NNE-SSW, spanning a small westerly flowing stream that flows into the nearby Salt Lake to the W. No…

Cairn – clearance cairn

SMR GA022-077001-SheeaunsProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Shrine

SMR GA077-017001-Cill ChiaráinProtected

In the middle of the older part of the burial ground (GA077-017—-). A roughly rectangular box-shaped structure (L 1.75m; Wth 1.35m; H 0.8m) is constructed of large natural boulders and roofed with smaller stones.…

Cairn – burial cairn

SMR GA035-040001-FakeeraghProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Religious house – Dominican friars

SMR GA050-026001-ToombeolaProtected

In an oval graveyard on seashore at mouth of An Abhainn Mhór. Site of a friary established in 1427 by Dominicans of Athenry (Gwynn and Hadcock 1970, 230). Destroyed in 16th C and its stones were reputedly used to build…

Altar

SMR GA063-015003-MaírosProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Well

SMR GA076-020023-Cruach Na CaraProtected

Located at the SE end of Cruach na Cara/St Macdara’s Island, c. 2.2m to the NE of a ruined house. This well (Wth 1m; L 0.3m; D 0.7m), dry at the time of inspection, may be a domestic well associated with the house. It…

Pier/Jetty

SMR GA077-036—-Roisín Na MainiachProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

Font

SMR GA010-011001-GlassillaunProtected

The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To…

House – medieval

SMR GA021-026089-High IslandProtected

This much-collapsed building is on the S side of the SE entrance of the monastic enclosure (GA021-026022-) on High Island. It is built against the enclosure wall and is roughly subrectangular in plan. It varies in width…

Cross-slab

SMR GA021-026007-High Islandearly_christianProtected

This cross-slab is c. 1.5m to the SSE of a holy well (GA021-026006-). It was previously located at the church (Wakeman 1839a). When Macalister (1896, 206, cross B) visited the island in 1896 it was leaning against the…

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 164 listed buildings in Ballynahinch (70th percentile across ROI baronies). This includes 1 structure of International significance and 3 of National significance — buildings of the highest architectural and historic interest. The Republic holds 13 International-graded and 937 National-graded buildings in total, so this barony accounts for around 0% of the highest-tier national stock. Construction dates concentrate most heavily in the Victorian (1830-1900) period. The most-recorded building type is house (35 examples, 21% of the listed stock).

Terrain and environment

Mean elevation across the barony is 85m — the 46th percentile among 280 ROI baronies for elevation. This means it is in the lower half of all baronies for elevation. 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 724m at its highest point — a vertical span of more than 639m within its boundary, indicating significant topographic diversity. Mean slope is 7.4° — the 93rd percentile among 280 ROI baronies for slope. This means it is in the top tenth 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 26°, typical of stream-cut valleys, escarpments, or coastal bluffs within the wider landscape. The Topographic Wetness Index averages 9.8, the 16th 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 mosaic combines improved grassland (82%), woodland (8%), and open water (5%), giving a mixed agricultural and semi-natural landscape. In overall character, this is steeply-sloping terrain at modest elevation, with land use dominated by improved grassland.

Terrain measurements

Mean elevation84.9 m
Max elevation724 m
Mean slope7.4°
Wetness index (TWI)9.78 16th pct
Grassland82.3%
Woodland8.3% 7th pct
Wetland3.6% 100th pct

Where this barony sits in the Republic of Ireland

Drainage
16th
Woodland
7th

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 Ballynahinch is predominantly pale quartzite (12% of the barony by area), with much of the rock dating to the Proterozoic period. With 20 distinct rock types mapped, the barony sits in the top third of ROI baronies for geological diversity (99th percentile) — typically a sign of complex tectonic history or coastal mosaics of differing rock units.

Dominant geological periodProterozoic (46%)
Dominant rock typePale Quartzite (12%)
Mapped formations42
Distinct rock types20 99th pct for diversity

Rock type composition

Pale Quartzite
12%
Metagabbro
12%
Psammitic Pelitic And Semi-Pelitioc Schists
12%
Marbles, Metavolcanics, Schists, Gneiss
10%
Schists
7%

Largest mapped unit: Bennabeola Quartzite Formation (12% of the barony)

Placename evidence

Logainm records 24 heritage-diagnostic placenames for Ballynahinch, drawn from townland and civil-parish names across the barony. The dominant stratum is pre-Christian and Early Medieval defensive — ráth-, lios-, dún-, and caiseal-prefixed names that mark Iron Age and early historic settlement. The leading diagnostic roots are dún- (7 — hilltop fort or promontory fort), cill- (5 — church), and ráth- (3 — earthen ringfort). This is broadly in line with the ROI average of 30.7 heritage placenames per barony. The presence of multiple heritage strata side by side indicates layered occupation of the landscape across successive prehistoric and historic periods. Logainm records 377 placenames for Ballynahinch (predominantly townland names). Of these, 24 (6%) 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
dún-7hilltop or promontory fort
ráth-3earthen ringfort
caiseal-2stone ringfort
lios-1ringfort or enclosure

Early Christian Ecclesiastical

RootCountMeaning
cill-5church (early)
cillín-1unconsecrated burial ground

Burial, Ritual, and Norse-Contact

RootCountMeaning
dumha-2mound
tuaim-1burial mound
carn-1cairn
leacht-1grave monument

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.