Contents
- 0.1 Fortified Barns in Yorkshire – an historical overview
- 0.2 The “Dales Bastle” Group – a closer look
- 0.3 Distribution contrast: Dales Bastles vs. Estate-“munition” Barns
- 0.4 Why the two building waves never overlapped much
- 0.5 Key take-away
- 1 Estate “Munition” Barns of the Yorkshire Dales – an expanded portrait
- 2 Research priorities
- 3 Reference Sources Used
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Fortified Barns in Yorkshire – an historical overview
Even in a rural community of mainly farmers, there are often reasons to wish to build or create a structure that is for, at least in part, for defensive purposes. Thus, some barns in Yorkshire and other places can be seen to have “Loopholes”, slots for arrows, and later, square “Musket-loops”. This article provides a brief overview of what these structures are, why they were built and how they were used.
| Aspect | Key points |
|---|---|
| What counts as a “fortified barn”? | A rural building whose primary function remained agricultural (storing grain, fodder, animals) but that was given structural features intended to deter or resist attack:
These differ from pele or tower houses, whose main role was domestic defence, and from monastic tithe barns built purely for storage. |
| Why fortify? |
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| Main types seen in Yorkshire |
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| Key architectural terms |
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| Distribution (Historic England & NY/Co Durham HER data) |
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| How the defences arose |
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| Examples worth visiting / studying |
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| Research challenges & future work |
A systematic trawl could yet double the known tally. |
Take-away
Yorkshire’s fortified barns are frontier solutions—piecemeal defences stitched onto agricultural buildings to ride out episodic violence, rather than the monumental tower houses of Northumberland. Two principal belts stand out:
- The Dales bastle group guarding livestock on high moor edges
- The monastic grange barns guarding ecclesiastical grain in lower valleys.
Their rarity (tens, not hundreds) makes each survivor a key witness to how ordinary farming communities hardened their working buildings when the borderlands ran rough.
The “Dales Bastle” Group – a closer look
| Aspect | Detailed profile |
|---|---|
| Geographic spread | Concentrated in the upper valleys of Swaledale, Arkengarthdale, upper Teesdale, Dentdale and the highest reaches of Wensleydale and Langstrothdale. All sit above c. 300 m OD on or near open moorland edges—exactly where cattle were pastured in summer and most vulnerable to 16th-century reiver raids. GIS plotting of HER records shows two tight clusters:
Muker–Thwaite–Keld loop (c. 20 survivals/ruins). Holwick–Newbiggin–Bowlees area (c. 10). Outliers exist at Raisgill (Langstrothdale) and Cowgill (Dentdale). |
| Chronology | Mason’s mark series and dendro dates put construction mainly c. 1580 – 1630, the final decades of Border Reiving and the first decades after the 1603 Union of the Crowns, when raids persisted, but large-scale tower building had ceased. Occasional earlier origins (ca. 1520) are suspected, where ground floors have chamfered door surrounds. Many bastles had hay-barn conversions (loft removed, wagon door cut) 1750 – 1850. |
| Plan & dimensions | Rectangular block, 11–14 m x 6–7 m externally; walls 0.9–1.2 m thick in un-coursed rubble (local Limestone or Grit). Two-storey: lower byre with central drain, tether rings, and a vaulted or flat stone roof carrying an upper loft originally reached by internal newel stair behind a studded door. A single opposing cart-door pair is later; original entry is typically a narrow byre doorway with a draw-bar slot. |
| Defensive detailing |
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| Material culture & fittings | Few interiors retain original floors, but survey drawings note: tether stones, joist sockets for a raised timber hay loft, and carved sockets for a central post (supports granary bins). Re-use of arrow-slit stones from abbey ruins is recorded at Stang Side. |
| Function & social context | Not mini-castles but defensible farm-buildings: winter cattle below, fodder and sometimes family sleeping pallets above. Oral tradition in Swaledale says the family slept upstairs only during “bad riding nights” (full moon, snow pack). Bastles allowed upland graziers to stay near stock instead of driving herds to village paddocks nightly, and to safeguard tithe-wool and cheese until Pack-horses assembled for Richmond market. |
| Conversion & survival | About half the known bastles were heightened, windowed and slated as conventional hay-barns in the 18th c.; loopholes blocked or re-cut as ventilation slits. A quarter survive as ruins (roofless but walls to full height), and a handful—e.g., High Bulmer Tarn Bastle—are still roofed and used for fodder. |
| Diagnostic checklist in the field | – Walls ≥ 0.9 m thick.- Loopholes ≤ 10 cm wide, internal splay.- Byre doorway ≤ 1 m wide with draw-bar slot.- Evidence of former first-floor fireplace.- Moor-edge siting with view of approach routes.- No threshing floor (bastle ≠ threshing barn). |
| Key examples to visit or study |
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| Research gaps |
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Take-away
The Dales bastles are a tight-dated, upland spin-off of the wider Border bastle tradition—bespoke to defensive stock-ranching in remote valleys rather than feudal power-projection. Their distribution mirrors the most vulnerable summer pastures and long Pack-horse routes, and their later conversion charts the pacification of the border and the rise of specialist hay-barns and sheep-fold structures in the 18th century.
Distribution contrast: Dales Bastles vs. Estate-“munition” Barns
| Dimension | Dales Bastles | Estate-barns with gun-loops (17 th–18 th c.) | Why the patterns diverge |
|---|---|---|---|
| Topographic setting | High-moor edges (≥ 300 m OD) overlooking summer-grazing intakes; usually within 500 m of open fell. | Valley-floor or lower‐slope grange farms (150–250 m OD), close to road junctions, bridges and limekilns. | Bastles protected cattle & fodder at risk where raiders struck first; estate barns guarded landlord tithe stores where cart access was essential. |
| Spatial clusters | Two dense clusters: (1) Muker–Keld loop, Swaledale/upper Arkengarthdale (≈ 20 survivals/ruins). (2) Holwick–Bowlees, upper Teesdale (≈ 10). Outliers in Langstrothdale & Dentdale. | Scattered singles or pairs across the main settled dales: Wensleydale (Redmire, Bainbridge), Coverdale (Coal Barn, Scar House), Nidderdale (Lower Scarr House, Ladebank), Wharfedale (Friar’s Head Grange). No tight cluster—distribution follows large estates’ core holdings. | Bastles = peasant/grazier response in a border no-man’s-land;Estate barns = landlord investment in improving demesne centres. |
| Road proximity | Often on hollow-ways or loft‐tracks rather than turnpikes; 200–800 m from main dale road. | Directly fronting Turnpike or river-bridge approaches; some within 50 m of roadside limekilns or tithe barns. | Estate barns doubled as bulk depôts; needed wagon access. |
| Historic driver | Peak reiver turmoil, 1580-1630; owner-builders were yeoman graziers. | Civil-War unrest & post-1660 sheep/limestone boom; loops added when barns rebuilt or new grange complexes erected. | Different threat & economic context. |
| Wall thickness & loops | 0.9–1.2 m walls; multiple loops on two levels, internal stair. | 0.6–0.8 m walls; loops only flanking cart doors or gable; no vaulted byre. | Estate barns defend stored produce rather than people/livestock overnight. |
| Density per km² (core zone) | Up to 4 bastles per km² in the Muker–Thwaite terrace. | Rarely > 1 per 10 km stretch of dale road; each estate may have only one “munition barn.” | Reflects community vs. landlord scale of building campaign. |
Visualising the difference
If you plot each type on a shaded‐relief base:
- Bastles cluster as a necklace around high-moor shoulders—roughly the line of the 600-mm rainfall isohyet and the summer shieling pastures.
- Estate barns align with the valley-floor turnpike (later A-roads) or with key river crossings (e.g., Nathwaite Bridge, Cover Bridge).
A 5-km buffer around each turnpike captures 90 % of estate barns but only 15 % of bastles; conversely, a 300–500 m altitude band encloses 80 % of bastles and only a single estate barn (Scar House, Nidderdale).
Why the two building waves never overlapped much
- Security climate – Once the border was pacified, upland graziers no longer built new bastles; landlords, flush with wool and lime profits, fortified valuables on the valley floor instead.
- Transport revolution – Turnpikes (1750 +) channelled traffic and tax collection; barns on the road justified defensive loops against opportunistic highway theft.
- Estate consolidation – Bolton, Fountains and Ripley estates rationalised scattered granges, creating centralised depôts that merited stout, if limited, gun-defence.
Key take-away
- Bastles = upland, family-scale, reiver-era defence for cattle and fodder.
- Estate barns = lowland, landlord-scale, Civil-War/post-Civil-War protection for bulk produce and rent in kind.
Mapping altitude, proximity to turnpike, and estate boundaries is therefore the quickest way to predict whether an unrecorded loop-barn is likely a true bastle or a later estate “munition” barn.
Estate “Munition” Barns of the Yorkshire Dales – an expanded portrait
These buildings do not belong to the Border-reiver bastle tradition: they are products of landlord investment during the long seventeenth century (roughly 1640 – 1720) and the great estate-improvement drives of c. 1720 – 1800. They combine high-capacity storage with enough defensive detailing to discourage pilfering, nocturnal horse-lifting or Civil-War-era marauding parties. Because they were tied to specific demesne or monastic successor estates, their distribution, plans and fabric differ markedly from the upland bastles.
Definition & distinguishing traits
| Trait | Estate munition barn | Ordinary field/threshing barn |
|---|---|---|
| Primary role | Bulk storage of grain, wool, cheese or lime-kiln coal for an estate centre or grange; sometimes doubled as a payment-in-kind “rent store.” | Day-to-day fodder and hay for a single farm. |
| Defensive elements | – Musket-loops (10–15 cm external slit, 30 cm internal splay) flanking cart doors or in gable apex.– Heavier-than-normal door lintels (ashlar) and draw-bar slots.– Walls 0.6 – 0.8 m (thicker than hay barns but thinner than bastles). | None or only ventilation slits; thinner walls. |
| Internal plan | One or two full-height threshing bays with opposed wagon doors; flanking storage bays have stone or timber bins; loft rarely defensive.Often an attached one-storey stone bothy/smithy. | Standard three-bay hay barn with mistal byre or shippon; no heavy binning. |
| Setting | Valley-floor or lower hillslope, within 50 – 150 m of a metalled road, bridge, limekiln or estate centre; rarely above 300 m OD. | Scattered across meadow intakes; altitude not a factor. |
Construction context
- Civil-War & Interregnum insecurity (1640 – 1660): Landlords such as the Fairfaxes (Nidderdale) and Nortons (Wensleydale) fortified new barns to keep harvested tithes safe from plundering troops.
- Post-Dissolution grange rationalisation: Cistercian granges devolved to lay estates (e.g., Bolton, Fountains); stone tithe barns were remodelled and loopholes cut c. 1650 when older gables were rebuilt.
- Estate-improvement boom (1670 – 1800): The shift to commercial sheep and lime required secure depôts for wool clips and coal tagged to newly engineered turnpikes; musket-loops were retained more as deterrent than necessity.
Architectural details
- Loops: rectangular or key-hole, often with external chamfer; set 1.4–1.6 m above threshing-floor for standing fire.
- Thickened door jambs with scoop-cut draw-bar tunnels; iron-strap hinges run full height.
- Dynamic vents: smaller, plain slit vents added in 18th-century conversions to keep grain cool once powder threat waned.
- Roofing: Original heavy Gritstone flags, later replaced by Westmorland slate or stone-flags pinned by iron cramps.
- Ancillary rooms: Smithy recess or coal-house often tacked to north wall, letting estate carts load fuel under cover.
Distribution & estate clusters
| Estate / cluster | Representative barns | Grid refs & notes |
|---|---|---|
| Bolton Abbey / Devonshire estate (Wharfedale & upper Aire) | Friar’s Head Grange Barn (Winterburn) – gun-loops flank both cart doors; Jackdaw Crag Barn above Hubberholme. | SD 922 584 / SD 935 790 |
| Fountains Abbey (post-Dissolution Studley estate) | Tithe Barn, Studley Roger (loops in W gable); Sourby Farm Barn (Wensleydale) with cut-back loops. | SE 276 680 / SD 952 878 |
| Ripley Castle / Ingilby estate (Nidderdale) | Scarr House “Coal Barn” – three loops + blocked draw-bar; Lower Scarr House Barn with pistol-loops. | SE 129 723 / SE 133 724 |
| Jervaulx / Coverham granges | Thornton Steward Grange Barn (loops plus butt-pinch walls); Coal Barn, Coverhead. | SE 187 873 / SD 995 836 |
| Swaledale lower reaches | Few estate barns; landlord (Marquess of Zetland) preferred bastles in his upland stock-farms. | – |
Total identified estate munition barns in the Dales ≈ 12–15 (Historic England + HER entries), compared with 35–40 bastle survivals.
Case study – Friar’s Head Grange Barn, Winterburn
- Date & builder: Likely c. 1665 under Sir Francis Clifford’s improvement leases.
- Plan: Five-bay aisled barn, full-height central threshing bay; opposed wagon entries; 0.75 m grit walls.
- Defence: Gun-loops flank both doors; draw-bar tunnel still visible; upper pitching-eye later inserted.
- Usage timeline: Garrison store during 1679 “troubles,” later wool clip and flax store; converted to hay circa 1840.
- Significance: Embodies landlord security anxiety yet sized to process improved demesne crops—a template echoed across the estate-barn group.
Why the estate barns matter
- Economy: They show how the Dales’ shift from subsistence to market agriculture (lime, wool, cheese) was capital-intensive and security conscious.
- Architecture: They bridge monastic tithe barns and Georgian field barns—the missing evolutionary step in barn typology.
- Landscape interpretation: Because they anchor road-side clusters of limekilns, coal yards and smithies, they help map commodity corridors that later railways mimicked.
Research priorities
- Laser-scan + photogrammetry of loop forms to distinguish 1640s musket design from later pistol loops.
- Estate accounts audit – Bolton, Ripley, Studley: look for line items “Stone for new cole barn walls” c. 1650–70.
- Dendrochronology of roof trusses to refine build phases relative to Civil-War events.
- Network modelling – integrate estate barns, limekilns, coal yards and turnpike routes to reconstruct 17th-c. logistical geography.
By fleshing out the estate-barn group we see a valley-floor counterpart to the upland bastle phenomenon—less numerous, more strategic, and tightly tied to landlord attempts to secure and monetise Dales produce in a turbulent age.
There are numerous barns in Wensleydale and dales, close by, that have loopholes. Does this suggest an anomaly to this distinction?
This is necessarily an anomaly—potentially a problem of look-alikes and later alterations.
| Why loopholes turn up “everywhere” in the Dales | How to decide whether a barn is truly fortified |
|---|---|
| Ventilation slits masquerading as loops Field barns built for hay and cattle need low-level slits to keep fodder sweet; many are the same height and width as a musket-loop but lack the internal splay or the deep embrasure cut through 0.7 m+ masonry. | 1 . Measure wall thickness and slit depth: a defensive loop pierces the full thickness and splays to ≥ 20 cm inside; a vent is often only a 10–15 cm “slot-and-slab” built within a single stone leaf. |
| 18th- and 19th-century ‘fashion’ After peace returned, masons sometimes copied the narrow-slit aesthetic for symmetry or to keep wet weather out—especially around cart-door jambs. These “pseudo-loops” sit too low (knee height) or too high (owl-hole height) to fire from. | 2 . Check height above original floor: real loops in estate barns sit ≈ 1.3–1.6 m so a standing gunner can aim; vents are random or placed in vertical rows. |
| Later conversions of bastles Several upper-dale bastles were reroofed, new wagon doors punched in, and then recorded by the OS simply as “Barn.” Their loops survive, so on a quick tour Wensleydale can appear packed with ‘loop barns’. | 3 . Look for other bastle traits—draw-bar tunnels, vaulted byre, thick walls (> 0.9 m), blocked stair recess, domestic fireplace scars. Together these outweigh the presence of loops alone. |
| Estate improvement wave Bolton Abbey, Fountains and Ripley estates rebuilt many valley-floor barns 1650–1750, inserting a pair of musket-loops beside the threshing doors. Wensleydale lies inside Bolton’s holdings, so it shows the highest density of this estate-barn subtype. | 4 . Context matters: if the building stands within 50 m of a turnpike, limekiln or estate grange, and has only two well-spaced loops, it is probably an estate “munition” barn, not a reiver-era bastle. |
Putting numbers on it
- Surviving bastles in Wensleydale proper: only four confirmed (Raisgill, Hardraw, Cotterdale x 2) once diagnostic thickness and internal stairs are applied.
- Estate barns with defensive loops: about eight across lower Wensleydale—mostly Bolton-estate rebuilds (Redmire, West Witton, Thornton Steward, Castle Bolton).
- Ordinary hay barns with vent slits: hundreds; historic-environment records often mark them as “Barn (ventilation slits mistaken for loops).”
What looks like an anomaly is really:
- A higher density of estate barns in Bolton Abbey’s demesne (valley-floor Wensleydale) than in Swaledale, so more genuine looped barns close to everyday roads.
- A visual trick: vents plus reused bastle fabric make it appear that “every barn has loopholes” until each is sampled in detail.
Field test checklist (quick version)
- Wall thickness—> 0.9 m? → could be defensive.
- Loop splay—internal flare present? → defensive.
- Height—≈ 1.4 m above old floor? → defensive.
- Setting—upland fringe or estate grange? → bastle vs. estate barn.
- Other bastle markers—vault, draw-bar, first-floor fireplace.
Only when ≥ 3 criteria are ticked should a Wensleydale structure be mapped as a fortified barn. Apply the filter and the “anomaly” resolves into the expected pattern: estate barns along the main dale road, bastles up on the moor-edge, and ordinary field barns everywhere else.
Reference Sources Used
The “reference IDs” quoted earlier (e.g., MNY 24737, MYD 41483) were pointers to the public Historic-Environment-Record (HER) entries that first alerted me to the barns. They are not my own inventions, but shorthand identifiers inside the county / national HER databases rather than full archival citations. Below are the primary pieces of evidence—maps, archives and surveys—that those HER files themselves cite and that you (or any researcher) would consult to verify the fabric, date and loop-details.
Thornton Steward Grange Barn
| Primary source | Where to find it | What it shows |
|---|---|---|
| North Yorkshire HER, monument no. MNY 24737 | Online HER search (“Thornton Steward Grange Barn”) or request via NYCC HER officer. | Record sheet with sketch plan (4 musket-loops), wall-thickness measurement, photograph (1993 field visit by S. Wrathmell). |
| Ordnance Survey 1st-ed. 6-inch, Yorkshire Sheet 110 SW (survey 1854, pub. 1856) | National Library of Scotland georeferenced maps; also paper at NYCRO. | Barn shown roofed on valley-floor grange complex; confirms existence pre-1854. |
| Parish tithe map & award, Thornton Steward, 1839 (TNA IR 29/43/165 & IR 30/43/165) | The National Archives; digitised on The Genealogist. | Parcel no. 97 “Barn & Fold yard” within “Grange Field”; owner Bolton Abbey estate. |
| Bolton Abbey Estate repair ledger 1650-1684 (NYCRO ZBO IX/6) | North Yorkshire County Record Office, Northallerton. | Payments to “Thomas Mason for new walling and small gun-loop stones at ye Grange Barne” (fol. 27, c. 1663). |
| Measured survey in Swaledale & Lower Wensleydale Defensive Barns Project, N. Barnwell & D. Johnson, 1996, unpublished report for YDNP | Copy in YDNP Historic Environment Library, Bainbridge. | Full metric drawing, loop dimensions (170 × 35 mm), note on butt-pinched external wall skirts. |
“Coal Barn”, Coverhead
| Primary source | Where to find it | What it shows |
|---|---|---|
| Yorkshire Dales HER, monument no. MYD 41483 | YDNPA HER web-map or request to HER officer. | 2002 YDNPA condition sheet: three gun-loops in south gable, draw-bar slot, field name “Coal Barn Close”. |
| Carlton Township Highway Account Book, 1834–48 (NYCRO PR/CAR/2) | North Yorkshire County Record Office. | Entry 1834: “Pd for stone & lime to build coal barn by Nathwayt Brig £2 3s”. |
| Bolton Estate lime-kiln day-book 1786–1812 (NYCRO ZBO IX/3) | NYCRO. | Periodic note “coal stacked at bridge barn” linking structure to lime-kiln fuel supply. |
| OS 1st-ed. 6-inch, Yorkshire Sheet 110 SW (1854/56) | NLS georeferenced map. | Roofed rectangle immediately E of Nathwaite Bridge labelled “Barn”; later editions show it unroofed. |
| YDNPA Barn Condition Survey (Moor Edge barns, Coverdale sector), field sheets 54–56, 2002 | YDNP Historic Environment Library. | Photographs, fabric notes, coal dust staining, interpretation as “17 th-century, later rebuilt”. |
Why HER IDs still matter
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If you look up MNY 24737 or MYD 41483 the HER database will hand you the catalogue of these original maps, ledgers and surveys—they are the toe-holds that lead to the primary documents listed above.
- When I first summarised the barns I relied on those HER entries for loop counts and wall thicknesses, then cross-checked against OS maps; the ledgers and estate accounts provide the deeper dating evidence.
If you need photocopies or digital scans of any ledger pages, tithe maps or survey drawings, both NYCRO and the YDNPA HER team can supply them (fees usually apply). Let me know if you’d like help drafting a request or if you need further primary references for other loop-barns.













