🇮🇪 Ireland · Earthwork
Corlea Trackway
Iron Age, Late La Tene 148 BCE · Late Iron Age La Tene Ireland
147 BCE Iron Age oak plank highway (3.2 m wide, 1.6 km) across Corlea Bog, largest European timber road built in one year.
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34 places in the atlas, 3 of them inscribed as UNESCO World Heritage.
🇮🇪 Ireland · Earthwork
Iron Age, Late La Tene 148 BCE · Late Iron Age La Tene Ireland
147 BCE Iron Age oak plank highway (3.2 m wide, 1.6 km) across Corlea Bog, largest European timber road built in one year.
🇮🇪 Ireland · Archaeological wonder
Late Bronze Age (Roscommon horizon) · Irish dryland-bog community
Late Bronze Age oak plank boardwalk (82 m, 1.4 m wide) across fen–raised bog transition at Monaghan.
🇮🇪 Ireland · Archaeological wonder
Neolithic to Iron Age consecutive · North Tipperary bog-edge farmers
North lobe extension of Derryville megacluster: 3 tracks (2450–220 BCE) plus wattle panel type-specimen.
🇮🇪 Ireland · Ancient village
Neolithic to Early Bronze Age (2750–2280 BCE) · Irish Neolithic–Early Bronze (Beaker transition, 2500 BCE)
700-m stacked bog road (2750 BCE brush under 2280 BCE oak plank) — only Neolithic→Bronze stacked reuse in Ireland.
🇮🇪 Ireland · Ancient village
Iron Age (Late Iron Age, La Tène D, 148 BCE) · Irish Iron Age (La Tène, Uisnech kingship)
Iron Age 1-km oak causeway (148 BCE) — Keenagh's in situ twin to Corlea 1, part of 5-trackway Shannon bog field.
🇮🇪 Ireland · Archaeological wonder
Iron Age (La Tène B / Gaelic Ireland) · Gaelic Iron Age Ireland
Eastern continuation (48 m asl, 53°37′N 07°50′W 53.62,-7.84 Cloonbreany 2 Cartron Rd N39 XT18) of the Iron Age Corlea Trackway (148 BC precise dendro of 18-m preserved hall, 148 BC autumn fell) bog…
🇮🇪 Ireland · Ancient village
Early Medieval (Early Christian Ireland) · Early Medieval Irish (Uí Briúin)
850-m early medieval alder causeway and 12 x 8 m platform (680–800 CE) — bog-edge iron working.
🇮🇪 Ireland · Temple complex
Early Medieval (544–1552 CE) · Early Christian Gaelic (Columban tradition)
Great early monastery at Shannon-Esker crossing (544 CE) with cathedral, two round towers, three high crosses and 3,000 graves.
🇮🇪 Ireland · Ancient village
Late Iron Age (La Tène) · Irish Iron Age (Ulster–Connacht)
1.5-km Iron Age oak plank causeway (120 BCE) — Edercloon's wheeled transport togher.
🇮🇪 Ireland · Megalith
Neolithic to Early Modern (c.4000 BCE–1600 CE) · Neolithic → Bronze Age → Iron Age → Early Medieval Gaelic
Mythic omphalos of Ireland — 182 m ceremonial hill with Lough Lugh summit lake, barrows and Bealtaine fire site.
🇮🇪 Ireland · Earthwork
Neolithic to Early Medieval (c.3400 BCE–1200 CE) · Neolithic → Iron Age La Tène → Early Medieval Gaelic
Ireland's paramount ceremonial landscape (142 ha) — Neolithic tomb, Lia Fáil kingship stone and Iron Age royal enclosure complex.
🇮🇪 Ireland · Megalith
Neolithic (c.3200–2800 BCE) · Boyne Valley Passage Tomb tradition
Meath passage tomb with wide cruciform chamber, timber-roofed instead of cairn, and profuse engraved art including anthropomorphs.
🇮🇪 Ireland · Earthwork
Iron Age to Early Medieval (c.1000 BCE–1100 CE) · Iron Age Gaelic → Early Medieval Uí Néill
Donegal hilltop royal cashel (23.5 m diameter) on Greenan Mountain — northern Uí Néill kingship inauguration fort.
🇮🇪 Ireland · Earthwork
Late Bronze Age to Early Medieval (c.1100 BCE–800 CE) · Atlantic Iron Age / Early Medieval Gaelic
Cliff-edge triple stone fort on Inishmore (6 ha) with massive chevaux-de-frise of jagged limestone — Ireland's most dramatic hillfort.
🇮🇪 Ireland · Earthwork
Early Medieval (8th–14th century CE) over Late Neolithic traces · Gaelic Early Medieval (Eoghanacht / Dalcassian)
Triple-walled Burren cashel on cliff spur above Carran — Early Medieval high-status ringfort with 13 house platforms.
🇮🇪 Ireland · Megalith
Neolithic (c.3200–2800 BCE) · Boyne Valley Passage Tomb tradition
Kilkenny dual-passage tomb with lavish megalithic art, aligned to both midwinter sunrise and sunset.
🇮🇪 Ireland · Megalith
Late Neolithic – Early Bronze Age (c.2500–2000 BCE) · Late Neolithic / Chalcolithic Limerick
Ireland's largest stone circle (46 m, 113 stones) — embanked, contiguous orthostats on Lough Gur shore.
🇮🇪 Ireland · Temple complex
Early Medieval (c.590–1398 CE) · Early Christian Gaelic (Anchorite tradition)
Wicklow glacial valley monastic city (6th century St Kevin) with 33 m round tower, medieval churches and double lakes.
🇮🇪 Ireland · Megalith
Middle Neolithic – Bronze Age · Carrowmore passage/boulder tradition (early)
Ireland's largest cemetery — ~30 boulder dolmens around Listoghil passage tomb (3600 BCE), oldest on Cúil Irra peninsula.
🇮🇪 Ireland · Megalith
Early to Middle Neolithic · Early Neolithic Ireland (Céide Ware)
10 km² Neolithic field walls and tombs preserved under blanket bog — world's oldest enclosed landscape, c.3500 BCE.
🇮🇪 Ireland · Megalith
Late Neolithic · Boyne / Loughcrew passage tradition
35 m Loughcrew chief tomb with cruciform chamber whose art is illuminated by equinox sunrise.
🇮🇪 Ireland · Megalith
Early to Late Bronze Age · Bronze Age Ulster (Donegal tradition)
44.5 m Donegal hilltop circle — 64 stones around platform cairn, one of Ireland's largest, Beltane-associated.
🇮🇪 Ireland · Megalith
Late Neolithic · Loughcrew-Carrowkeel passage tradition (Boyne variant)
14 hilltop passage cairns (10–21 m) on Bricklieve ridges above Lough Arrow, with cruciform chambers and light boxes.
🇮🇪 Ireland · Megalith
Late Bronze Age · Cork-Kerry recumbent circle tradition
Recumbent circle (9.3 m, 17 stones) above Glandore with midwinter sunset alignment and hut/fulacht complex.
