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Mynydd Mallaen Long Hut is a medieval rectangular hut situated on upland terrain in Wales. The structure stands on bedrock composed of Llandovery mudstone, siltstone and sandstone, geology that would have provided both building material and shaped the settlement's integration into the landscape. As a long hut, the monument represents a characteristic dwelling form of the medieval period, when such rectangular structures served as domestic and sometimes domestic-industrial spaces for rural communities.
The site occupies exposed upland ground where the underlying geology surfaces as rough, weathered stone. Long huts of this type typically comprise a single, elongated rectangular chamber, often aligned according to the slope of the terrain to manage drainage and structural stability on mountainous sites. The Llandovery bedrock's varied composition—mixing softer mudstone and siltstone with more durable sandstone—would have influenced construction methods and the structure's longevity.
The monument is protected by Cadw under reference CM303, reflecting its significance as evidence of medieval settlement patterns and building traditions in the Welsh uplands. Such huts illuminate how communities adapted to challenging terrain and resource availability, with their siting and form responding to both practical requirements and the particular geological character of their locations.
Mynydd Mallaen Long Hut is a scheduled monument protected by Cadw under reference CM303. View the official record →
Mynydd Mallaen Long Hut is a medieval rectangular hut situated on upland terrain in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CM303.
Mynydd Mallaen Long Hut dates from the medieval period, and is classified as a rectangular hut. It is one of over 32,000 scheduled monuments protected across the UK.
Mynydd Mallaen Long Hut 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 CM303.
Several scheduled monuments lie within 10 km, including Nantiwrch round barrow (4.4 km), Roman Road c. 250m SSW of Gilwen Farm (5.4 km), Roman Road c. 400m S of Benlan Farm (5.7 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Mynydd Mallaen Long Hut'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.
Mynydd Mallaen Long Hut stands on Llandovery Rocks (Undifferentiated), bedrock that formed in the Llandovery. The rock here is mudstone, siltstone and sandstone.