From the BBC:
England's western-most
Roman town uncovered
By Louise
OrdAssistant Producer, Digging For
BritainRoman coins found by two local
men led to the discovery of a town
A chance discovery of coins has led to the bigger find of a
Roman town, further
west than it was previously thought
Romans had settled in
England.
The town was found under fields a number of miles
west of Exeter, Devon.
Nearly 100
Roman coins were initially uncovered there by two amateur archaeological enthusiasts.
...
After the coins were unearthed by the local
men out using metal detectors, Danielle Wootton, the University of Exeter's liaison officer for the
Portable Antiquities Scheme (PAS), which looks after antiquities found by the public, was tasked with investigating further.
After carrying out a geophysical survey last summer, she said she was astonished to find evidence of a huge landscape, including at least 13 round-houses, quarry pits and track-ways covering at least 13 fields, the first of its kind for the county.
"This was a really exciting discovery," said Ms Wootton. But she said most exciting of all was that her team
had stumbled across two burial plots that seem to be located alongside the settlement's main road.
http://www.bbc.co.uk/news/science-environment-14340933