Thanks for your comments!
Yes, a visit to Cornwall is great - highly recommended! Check out Jonathan's excellent map (
http://www.thelostcrown.co.uk/realsaxton) for Lost Crown real life sites, and Matt's map (
http://www.barrow-hill.co.uk/feature...barrowhill.htm) for Barrow Hill locations.
The Stargate reference was me but I think Matt elaborated...