Well, I didn't, you saw me in the process of self-education :-)
My image of a peat bog was (a) a German low-land filled-up lake, or (b) a Scottish or Cornish hilltop moor (the versions I have seen personally, and the ones I read of as being used for 'atmospheric composition archeology'), so blanket bogs were a news to me. *Lunatic*, n. One whose delusions are out of fashion.