Epiacum's impressive earthwork defences are still visible to this day
Epiacum is a site full of buried treasure, which no-one can reach - no-one human at least.
Near Alston in Cumbria, close to the Northumberland border, where now there are fields, there was once a thriving Roman fort.
Unfortunately for archaeologists, they cannot access any of the historic artefacts beneath the ground - because the site is a scheduled ancient monument.
Moles, however, pay no heed to the land's protected status.
The velvety creatures have not only been digging up the earth, but doing their bit for archaeology by inadvertently pushing ancient objects to the surface.
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