Sounds very spooky. Not somewhere to go without your wellies and an anorak either - not somewhere to mess with nature by the sound of it.

I suppose if stone circles are friendly trading places or astronomical reminders then you wouldn't want to go sticking one somewhere in the middle of a bleak frightening place.

Dartmoor has lots of prehistoric remains though? But I suppose it did used to be much warmer then, and perhaps further north that was not the case.