HER:  Archaeological Survey of Ireland SMR Database MA038-129006 (None)
NMR:  MA 038 (None)
SM:  None
NGR:  None
X:  517310  Y:  812344  (IRENET95)
Large, sub-rectangular inland promontory fort with a total site foot print of approximately 14.3ha is positioned at the NW shore of Lough Conn. The fort is defined by the lake at the N, E and W and is joined to the mainland by a neck of land at the S which is protected by an 8m wide ditch feature visible in aerial photographs as a vegetation mark. Univallate with no obvious entrance features recorded. A religious house and holy well are visible within the interior. Earlier features include other ruined buildings and enclosures, although it is unknown if these are contemporary with the construction and occupation of the promontory fort. Interior is under pasture, with patches of scrub and tree cover. This site is not recorded in any historic mapping. There is no published archaeological record of this monument.
Citizen Science:  ✗
Reliability of Data:  Confirmed
Reliability of Interpretation:  Confirmed
X:  -1031138  Y:  7180316  (EPSG: 3857)
Longitude:  -9.26286581938178  Latitude:  54.05361029501934  (EPSG:4326)
Country:  Republic of Ireland
Current County or Unitary Authority:  Mayo
Historic County:  Mayo
Current Parish/Community/Council/Townland:  Errew
Visible as a vegetation mark in aerial photography.
| 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   | ✗ |
Inland promontory fort on the NW shore of Lough Conn. The fort is defined by the lake at the N, E and W and is joined to the mainland by a neck of land at the S which is protected by an 8m wide ditch feature visible in aerial photographs as a vegetation mark.
| 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:  Promontory.
| North   | ✗ |
| Northeast   | ✗ |
| East   | ✗ |
| Southeast   | ✗ |
| South   | ✗ |
| Southwest   | ✗ |
| West   | ✗ |
| Northwest   | ✗ |
| Level   | ✓ |
Altitude:  11.0m
N/A
None.
Reliability:  D - None
| Pre 1200BC   | ✗ |
| 1200BC - 800BC   | ✗ |
| 800BC - 400BC   | ✗ |
| 400BC - AD50   | ✗ |
| AD50 - AD400   | ✗ |
| AD400 - AD 800   | ✗ |
| Post AD800   | ✗ |
| Unknown   | ✓ |
| Pre Hillfort:   | None |
| Post Hillfort:   | Modern religious house and holy well. |
This site is not recorded in any historic mapping. Visible as a cropmark in aerial photography. There is no published archaeological record of this monument.
The large interior has a number of features from various periods. This includes a religious house and holy well, and traces of other ruined buildings and enclosures are visible on satellite imagery (SH). None of these are necessarily associated with the promontory enclosure.
None
| None   | ✗ |
| Spring   | ✓ |
| Stream   | ✗ |
| Pool   | ✗ |
| Flush   | ✗ |
| Well   | ✗ |
| Other   | ✗ |
Modern religious house, holy well, enclosure and earthwork.
| 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   | ✗ |
None
| APs Not Checked   | ✗ |
| None   | ✓ |
| Roundhouses   | ✗ |
| Rectangular Structures   | ✗ |
| Pits   | ✗ |
| Postholes   | ✗ |
| Roads/Tracks   | ✗ |
| Other   | ✗ |
No obvious entrance features recorded.
| 0:   | None |
| 2:   | None |
Guard Chambers:  ✗
Chevaux de Frise:  ✗
Sub-rectangular area defined by Lough Conn at the N, E and W and by an 8m wide ditch feature at the S running E-W across the neck of the promontory. This feature has been ploughed out and is only visible in aerial photographs as a vegetation mark.
| Area 1:   | 13.86ha. |
| Total:   | 13.86ha. |
Total Footprint Area:  14.27ha.
None
| ✗   | The area measurement has been taken to a relatively low the water's edge, and the land currently in pasture is little more than 8ha |
| ✗   | None |
| NE Quadrant:   | 0 |
| SE Quadrant:   | 1 |
| SW Quadrant:   | 0 |
| NW Quadrant:   | 0 |
| Total:   | 1 |
| Partial Univallate   | ✓ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
| Unknown   | ✗ |
| Partial Univallate   | ✗ |
| Univallate   | ✗ |
| Partial Bivallate   | ✗ |
| Bivallate   | ✗ |
| Partial Multivallate   | ✗ |
| Multivallate   | ✗ |
None
| 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 |
| ✓   | No visible evidence for an accompanying bank. |
Number of Ditches:  1
| ✗   | None. |
No related records
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