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Tomen y Mur
52.9299° N, -3.9268° E
About
Tomen y Mur is a First Century AD Roman fort in Snowdonia, Gwynedd, Wales. The fortification, which lies on the slope of an isolated spur northeast of Llyn Trawsfynydd, was constructed during the North Wales campaigns of governor Gnaeus Julius Agricola in AD 78. The fort stood adjacent to the Roman road known as Sarn Helen. It was occupied until it was abandoned around AD 140. In the 11th century, the Normans reused part of the site for a motte. Tomen y Mur, which is managed by Snowdonia National Park Authority, is a scheduled monument.
Historical Timeline
Journey through time and discover key events in this site's history
Ordovices resistance and cavalry massacre
AD 50s
Fort constructed during Agricola's campaigns
AD 78
Rebuilt in stone with reduced garrison
early 2nd century
Site abandonment
c. AD 140
Norman motte raised (possible date)
1095
Archaeological Features
Unique architectural and cultural elements found at this historical site
Defensive Structures
Military Installations
Public and Civic Structures
Burial and Funerary Structures
Religious and Ritual Structures
Artistic and Decorative Features
Environmental and Natural Features
Transportation and Communication Structures
Frequently Asked Questions
Plan Your Visit
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