
1) Hill fort in Devon
Found on
https://www.crosswordclues.com/clue/posbury

Posbury Hill Fort is an unexcavated Iron Age Hill fort, located three miles south-west of Crediton, Devon. It consists today of an incomplete earthwork partly enclosing a hilltop 180 metres above sea level. A modern road cuts across the north of the hilltop. Just to the south of the hamlet there are the remains of an early Roman road, that ran fro...
Found on
http://en.wikipedia.org/wiki/Posbury
No exact match found.