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Souterrain & Possible Cashel is an early Christian souterrain situated in the Newry and Mourne district of Northern Ireland. The monument lies upon bedrock of Late Silurian to Early Devonian felsic igneous intrusion, formed during the Early Devonian period. This geology of hard igneous rock presented considerable challenges to those who constructed the underground passage, yet the builders persevered in creating what appears to be a domestic or defensive structure typical of the early medieval period in Ulster.
The souterrain itself would have functioned as a subterranean passage, possibly serving defensive, storage or ritual purposes within the settlement. The possible cashel—an enclosing stone rampart—suggests a fortified farmstead of some status. Such integrated settlements combining both the underground works and surface fortifications are characteristic of early Christian Ireland's mixed economy of subsistence and pastoral farming.
The site is protected by the Historic Environment Division of the Department for Communities under statutory reference 8709. The combination of souterrain and cashel, if confirmed, represents an important survival of early medieval settlement archaeology in this region, offering evidence of how communities adapted to local landscape and geological conditions when constructing their domestic and defensive infrastructure.
Souterrain & ?cashel is a scheduled monument protected by Department for Communities NI under reference 8709. View the official record →
Souterrain & Possible Cashel is an early Christian souterrain situated in the Newry and Mourne district of Northern Ireland. It is designated a Scheduled Ancient Monument by DfC Northern Ireland (NISMR) under reference 8709.
Souterrain & ?cashel dates from the e.christ. period, and is classified as a souterrain. It is one of over 32,000 scheduled monuments protected across the UK.
Souterrain & ?cashel is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 8709.
Several scheduled monuments lie within 10 km, including Mound - possibly barrow (5.5 km), The small cairn. megalithic tomb (6.3 km), Standing stone (6.7 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Souterrain & ?cashel's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Souterrain & ?cashel stands on Unnamed Igneous Intrusion, Late Silurian To Early Devonian, bedrock that formed in the Early Devonian. The rock here is felsic-rock.