Google's approximation of the locationDescription of institution:Even more otherworldly is the Grotto Well or Petrifying Spring, a spring which arises within a simple Grade II listed Grotto in the estate of Boughton Hall. Although grotto is perhaps a rather too enticing name for what is basically a limestone rubble hemisphere beneath an earth mound and consisting of unadorned stone walls.URL:https://insearchofholywellsandhealingsprings.com/category/northamptonshire/