A previously undiscovered section of Hadrian's Wall has been unearthed by engineers working on a road development in Cumbria.
Hadrian's Wall is 84 miles long linking Tyneside with Cumbria
Archaeologists have now investigated the site where the new Carlisle Northern Development Route will cross the River Eden.
They have found a fragmented section of the wall several metres long.
It is in a place where it had been believed that the river had washed away all traces of the structure.
The 84-mile wall is one of the north of England's most recognised landmarks linking Wallsend, in Tyneside, with Bowness-on-Solway.
Cumbria County Council archaeologists found a single course of flat stones which is likely to have been the base of the wall.
There is also clear evidence of the vallum - an earthwork mound and ditch. Small shards of Roman pottery have also been found.
A report due next week will detail what has been found and offer some interpretation of the discovery.
County archaeologist Richard Newman said: "The sections of the wall revealed in the excavation trenches are significant because we were unaware of the form taken by the wall to the immediate west of Carlisle.
"Before this we did not know whether it survived or whether it had been built of stone or turf".