Yarrowbury is an Iron Age hill fort situated close to Bigbury in Devon, England. The fort is situated on Hilltop to the north east of the village at approximately 80 metres above sea level, overlooking the Avon Estuary. ... Found on http://en.wikipedia.org/wiki/Yarrowbury
1) Hill fort in Devon 
Yarrowbury is an Iron Age hill fort situated close to Bigbury in Devon, England. The fort is situated on Hilltop to the north east of the village at approximately 80 metres above sea level, overlooking the Avon Estuary. ...