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Arosfa Gareg-Llwyd Roman Camp is a Roman marching camp located in Wales and protected by Cadw under reference CM174. The site occupies ground underlain by Lower Devonian rocks of mudstone, siltstone and sandstone formations, typical of the Early Devonian geology that characterises much of this region. This bedrock provided the base and drainage for the temporary military installation.
As a marching camp, Arosfa Gareg-Llwyd would have served as a stopping place for Roman legions moving through hostile or newly conquered territory. These camps were characterised by their standardised rectangular or trapezoidal layouts with defensive ditches and ramparts, designed for rapid construction and rapid abandonment. Their presence across Wales marks the routes and campaigns of Roman military expansion, particularly during the conquest of Britain in the first and second centuries AD.
The camp's survival to the present day, preserved in the landscape and now under Cadw's stewardship, contributes to understanding of Roman military infrastructure and movement through Wales. The solid substrate of the Lower Devonian bedrock would have assisted with drainage during occupation, a practical consideration for temporary structures intended to house and protect troops in the Welsh uplands.
Arosfa Gareg-Llwyd Roman Camp is a scheduled monument protected by Cadw under reference CM174. View the official record →
Arosfa Gareg-Llwyd Roman Camp is a Roman marching camp located in Wales and protected by Cadw under reference CM174.
Arosfa Gareg-Llwyd Roman Camp dates from the roman period, and is classified as a marching camp. It is one of over 32,000 scheduled monuments protected across the UK.
Arosfa Gareg-Llwyd Roman Camp 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 CM174.
Several scheduled monuments lie within 10 km, including Deserted Settlements 800m N of Blaenau Farm (8 km), Banwen Gwys Round Cairns (8 km), Bwlch y Ddeuwynt Round Cairn (8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Arosfa Gareg-Llwyd Roman Camp'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.
Arosfa Gareg-Llwyd Roman Camp stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.