Well, I'm not going to spoil anyone's fun - because I just don't know.
However, I can tell you where it
isn't (to save you all the same amount of time I have just spent, searching to no effect)!
It
isn't Bishops Lydeard (but I see your line of thinking, grahame,: there are several features similar to there!); nor is it Cranmore (East Somerset); nor Buckfastleigh or Staverton (South Devon); nor Grosmont, Levisham or Goathland (North Yorkshire Moors).
So, I just don't know. It seems to be somewhere much smaller - in a cutting, or valley, surrounded by trees?
A good challenge, TerminalJunkie!