I thought this hill might be 'Burfa Camp' (approx. SO284610) but I suspect I might be wrong.
K x
Who knows where place names come from? The Whimble is a well loved natural hill above New Radnor (and well worth climbing on to it for the views...I got married there!). The whole area is covered in whimberries, so that may have something to do with the name.
The second photograph DOES show Burfa Hill.