HER:  Archaeological Survey of Ireland SMR Database MA010-005 (None)
NMR:  MA 010 (None)
SM:  None
NGR:  None
X:  475472  Y:  836484  (IRENET95)
This coastal promontory, marked as 'Doon-na-dell' on the second edition OS six-inch map, is located at Broadhaven Bay, Co. Mayo, projecting NE from the mainland for c. 80m. The promontory forms an irregular finger of land with a level top measuring 15 to 18m across above a truncated cone of steep rock outcrop. Except on the S, it is enclosed with a low field fence 0.9m high and 1.5m wide. The promontory has suffered greatly from coastal erosion over the years, and the defences were already heavily eroded when surveyed by Thomas Westropp in 1912. He noted that there was no trace of an outer bank and the ditch was 'full of washed earth' and hardly 0.6m deep. The inner rampart was an earthen bank with a stone face surviving for 7m 'having been cut back for 4 feet to leave the path to the cove' (1914, 80). It is 1.5m high and 2.7m wide. There are no recorded internal features and Westropp noted that large slices of the cliff had fallen away in recent years. A path leads down to the cove used for bringing up seaweed for manure (1912, 81).
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -1103340  Y:  7219933  (EPSG: 3857)
Longitude:  -9.911470433771223  Latitude:  54.26200192891517  (EPSG:4326)
Country:  Republic of Ireland
Current County or Unitary Authority:  Mayo
Historic County:  Mayo
Current Parish/Community/Council/Townland:  Ballyglass
None
| Extant   | ✓ |
| Cropmark   | ✗ |
| Likely Destroyed   | ✗ |
None
| Woodland   | ✗ |
| Commercial Forestry Plantation   | ✗ |
| Parkland   | ✗ |
| Pasture (Grazing)   | ✓ |
| Arable   | ✗ |
| Scrub/Bracken   | ✗ |
| Bare Outcrop   | ✗ |
| Heather/Moorland   | ✗ |
| Heath   | ✗ |
| Built-up   | ✗ |
| Coastal Grassland   | ✗ |
| Other   | ✗ |
This coastal promontory is located at Broadhaven Bay, Co. Mayo, projecting NE from the mainland for c. 80m. The headland forms an irregular finger with a level top measuring 15m to 18m across resting on a truncated cone of steep rock outcrop.
| Contour Fort   | ✗ |
| Partial Contour Fort   | ✗ |
| Promontory Fort   | ✓ |
| Hillslope Fort   | ✗ |
| Level Terrain Fort   | ✗ |
| Marsh Fort   | ✗ |
| Multiple Enclosure Fort   | ✗ |
| Hilltop   | ✗ |
| Coastal Promontory   | ✓ |
| Inland Promontory   | ✗ |
| Valley Bottom   | ✗ |
| Knoll/Hillock/Outcrop   | ✗ |
| Ridge   | ✗ |
| Cliff/Plateau-edge/Scarp   | ✗ |
| Hillslope   | ✗ |
| Lowland   | ✗ |
| Spur   | ✗ |
Dominant Topographic Feature:  None
| North   | ✗ |
| Northeast   | ✓ |
| East   | ✗ |
| Southeast   | ✗ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✗ |
| Level   | ✗ |
Altitude:  5.0m
N/A
There is no dating available for the site
Reliability:  D - None
| Pre 1200BC   | ✗ |
| 1200BC - 800BC   | ✗ |
| 800BC - 400BC   | ✗ |
| 400BC - AD50   | ✗ |
| AD50 - AD400   | ✗ |
| AD400 - AD 800   | ✗ |
| Post AD800   | ✗ |
| Unknown   | ✓ |
| Pre Hillfort:   | None |
| Post Hillfort:   | None |
The site is depicted as 'Doon-na-dell' on the second edition OS six-inch map. Visited and surveyed by Thomas Westropp in 1914.
| 1st Identified Map Depiction (1839):   | OS six-inch mapping |
| Earthwork Survey (1914):   | Thomas Westropp |
There are no recorded internal features
None
| None   | ✓ |
| Spring   | ✗ |
| Stream   | ✗ |
| Pool   | ✗ |
| Flush   | ✗ |
| Well   | ✗ |
| Other   | ✗ |
None
| No Known Features   | ✓ |
| Round Stone Structures   | ✗ |
| Rectangular Stone Structures   | ✗ |
| Curvilinear Platforms   | ✗ |
| Other Roundhouse Evidence   | ✗ |
| Pits   | ✗ |
| Quarry Hollows   | ✗ |
| Other   | ✗ |
None
| No Known Excavation   | ✓ |
| Pits   | ✗ |
| Postholes   | ✗ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Roads/Tracks   | ✗ |
| Quarry Hollows   | ✗ |
| Other   | ✗ |
| Nothing Found   | ✗ |
None
| No Known Geophysics   | ✓ |
| Pits   | ✗ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Roads/Tracks   | ✗ |
| Quarry Hollows   | ✗ |
| Other   | ✗ |
| Nothing Found   | ✗ |
None
| No Known Finds   | ✓ |
| Pottery   | ✗ |
| Metal   | ✗ |
| Metalworking   | ✗ |
| Human Bones   | ✗ |
| Animal Bones   | ✗ |
| Lithics   | ✗ |
| Environmental   | ✗ |
| Other   | ✗ |
NO APPARENT FEATURES
| APs Not Checked   | ✓ |
| None   | ✗ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Pits   | ✗ |
| Postholes   | ✗ |
| Roads/Tracks   | ✗ |
| Other   | ✗ |
There are no recorded entrances
| 0:   | None |
| 2:   | None |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
The promontory has suffered greatly from coastal erosion over the years, and the defences were already heavily eroded when surveyed by Thomas Westropp in 1912. He noted that there was no trace of an outer bank and the ditch was 'full of washed earth' and hardly 0.6m deep. The inner rampart was an earthen bank with a stone face surviving for 7m 'having been cut back for 4 feet to leave the path to the cove' (1914, 80). It is 1.5m high and 2.7m wide.
| Area 1:   | 0.03ha. |
| Total:   | 0.03ha. |
Total Footprint Area:  0.04ha.
None
| ✗   | None |
| ✗   | None |
| NE Quadrant:   | 0 |
| SE Quadrant:   | 0 |
| SW Quadrant:   | 1 |
| NW Quadrant:   | 0 |
| Total:   | 1 |
| Partial Univallate   | ✓ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
| Unknown   | ✗ |
| Partial Univallate   | ✗ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
Stone faced earthen bank
| None   | ✗ |
| Earthen Bank   | ✓ |
| Stone Wall   | ✓ |
| Rubble   | ✗ |
| Wall-walk   | ✗ |
| Evidence of Timber   | ✗ |
| Vitrification   | ✗ |
| Other Burning   | ✗ |
| Palisade   | ✗ |
| Counter Scarp Bank   | ✗ |
| Berm   | ✗ |
| Unfinished   | ✗ |
| Other   | ✗ |
None
| None   | ✗ |
| Earthen Bank   | ✗ |
| Stone Wall   | ✗ |
| Murus Duplex   | ✗ |
| Timber-framed   | ✗ |
| Timber-laced   | ✗ |
| Vitrification   | ✗ |
| Other Burning   | ✗ |
| Palisade   | ✗ |
| Counter Scarp Bank   | ✗ |
| Berm   | ✗ |
| Unfinished   | ✗ |
| No Known Excavation   | ✓ |
| Other   | ✗ |
| ✗   | None |
| ✓   | None |
Number of Ditches:  1
| ✗   | None |
Westropp, T.J. 1912. The promontory forts and early remains of the coasts of County Mayo. Part III- The Mullet. The Journal of the Royal Society of Antiquaries of Ireland 42, 59-139.
Atlas of Hillforts:
Wikidata:
This work is licensed under CC BY-SA 4.0 and should be cited as:
Lock, Gary and Ralston, Ian. 2024. Atlas of Hillforts of Britain and Ireland. Available at: https://hillforts.arch.ox.ac.uk
Document Version 1.1