Holy Well in Roseworthy Barton
Chapel-close at Barton of Roseworthy was the field that the cross
was moved from. Although the fields aren't labelled in the maps
there is a holy well marked still on the OS maps to the south of
the village. Wells and crosses often went together in the earliest
days of Christianity in Cornwall.
This well was rediscovered in 2008.
'This Well has the absolutely classic holy Well origin tale attributed to it, or water pouring forth form the ground after it was struck with a wooden staff wielded by the pagan King Teudar, after he had been defeated in battle by Saint Gwinnear.'
http://nwiforum.hereditarius.org/viewtopic.php?f=4&t=266