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Largest Viking Age building ever discovered in Britain revealed

Largest Viking Age building ever discovered in Britain revealed in Solway Coast National Landscape

A £15,000 Farming in Protected Landscapes funded archaeology project has revealed what is believed to be the largest Viking Age building ever to be discovered and excavated in Britain. The Viking Age Manor Farm was unearthed at High Tarns in the Solway Coast National Landscape. 

The Defra-funded Farming in Protected Landscapes (FiPL) programme supports farming and land management activities in England’s Protected Landscapes that make improvements for nature, climate, people and place. The programme blends national, regional and local priorities and devolves decision making to local experts. It fills gaps not met by other farming support available, especially for smaller landholders. Contributions to nature recovery and climate resilience, sustainable businesses, social wellbeing and community building, heritage conservation and better access for people to enjoy our nation’s landscapes all feature in programme delivery, coming together to make much more resilient rural places.

Grampus Heritage A composite image with a drone shot on the left - looking down on a field with crop markings visible. On the right is the interpretation of what the crop markings show, a series of walls

Aerial photograph of the site with interpretation

Crop-marks on aerial photographs of High Tarns Farm near Silloth in Cumbria led archaeologists from Grampus Heritage to suspect that the remains of a large building might be hiding underneath the farm’s fields.

Solway Coast National Landscape’s FiPL panel, consisting of specialist staff from the National Landscape team and local farmers and landowners approved a £15,000 grant to enable the Grampus Heritage team to carry out a geophysical survey and then to excavate three trenches to explore further. The dig took place over six weeks during summer 2024, staffed by local volunteers trained in archaeological techniques.

Three people smile at the camera. They are all in a five foot deep archaeology trench. There appear to be stone walls in the trench. They are all in muddy boots and have digging tools. Grampus Heritage

Initially, the team suspected that the site was connected to the nearby Cistercian monastery of Holme Cultram, but, excitingly, carbon dating carried out as part of the excavation revealed a much older structure. Samples from a posthole, a charcoal production pit and the bottom of an oat drying chamber revealed a date for the building of late 10th / early 11th century.  

The date allowed the team to interpret the building as a large Hall of the late Viking Age. As if that wasn’t exciting enough, it makes the site the largest Viking Age building to be discovered and excavated in Britain.

Mark Graham of Grampus Heritage said: “The significance of this discovery in shedding light on the early medieval period and social structure in rural Cumbria and more widely is hard to overstate.”

While there is clear evidence of Viking Age heritage in Cumbria, through Scandinavian placenames, dialect, Viking burials and sculpture from the period in older church sites, there is an absence of buildings from the period. It’s likely that later buildings were built on top of settlement sites. This makes the finding of the whole footprint of a building from the late Viking Age at High Tarns hugely significant.

Grampus Heritage A drone shot with three archaeological trenches in the foreground. The trenches are fairly large, one of them has about eight people working in it and plenty of space. The landscape carries on into the distance with hedge edged fields and a bright blue tarn

Three trenches were dug as part of the project

A large archaeology trench. There is a deeper bit in the centre forming what looks like a circular wall with steps down to it. Grampus Heritage