Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it'

In this quiz you have to find a place in britain,the clue is, this one is full of sweet hills and vales, and it's in a song ,in it it contains the words, full of sweet hills and vales,hope someone can help,be oh so grateful.Thanks.

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

Wales i think is your answer..

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

It's not Essex is it?

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

what?

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

Burminghamm, Bristol, Nottingham???

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

certainly not the fens.

Place that tune quiz, which place in britain sings about being full of sweet hills and vales,it's a new quiz .

I would hazard a guess at it being Wales