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# Roman Road extending SE from Llyn Hiraethlyn
This Roman road is a linear earthwork extending approximately 650 metres south-eastward from Llyn Hiraethlyn toward Glasgoed in Wales. The route follows the undulating topography of the Upper Cambrian bedrock, which consists of mudstone, siltstone and sandstone of Tremadocian age. The road's construction and survival across this geological substrate demonstrates Roman engineering adaptation to the local landscape, where softer sedimentary rocks would have required effective drainage and consolidated surfacing to maintain the routeway through potentially waterlogged terrain.
The monument preserves evidence of Roman military and administrative communication across the Welsh interior, typical of roads constructed to support the consolidation of Roman authority in the principality during the first and second centuries AD. Its south-easterly alignment and location suggest connection between Roman establishments in the region, linking settlements or forts across the challenging upland terrain.
The site is protected as a scheduled monument under Cadw's reference ME262, recognising its archaeological and historical significance as part of the Roman road network in Wales. The 650-metre visible length represents a substantial stretch of Roman infrastructure, preserving earthwork remains that reflect both Roman technical achievement and the landscape constraints of the Welsh Cambrian hills.
Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed is a scheduled monument protected by Cadw under reference ME262. View the official record →
# Roman Road extending SE from Llyn Hiraethlyn This Roman road is a linear earthwork extending approximately 650 metres south-eastward from Llyn Hiraethlyn toward Glasgoed in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference ME262.
Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed dates from the roman period, and is classified as a road. It is one of over 32,000 scheduled monuments protected across the UK.
Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is ME262.
Several scheduled monuments lie within 10 km, including Roman Practice Camps 190m W of Llyn Hiraethlyn (0.4 km), Castell Prysor (1.3 km), Dol-ddinas Roman Earthworks (1.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed'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.
Roman Road extending SE 650m from Llyn Hiraethlyn toward Glasgoed stands on Upper Cambrian, Including Tremadoc, bedrock that formed in the Tremadocian. The rock here is mudstone, siltstone and sandstone.