Geograph - photograph every grid square

Hill tops have traditionally been the site for wrning or celebratory beacons at times of national significance. It is known that Castle Hill had a warning beacon in case of invasion both from the Spanish Armada in the 1580s and Napoleon's army in the early 19th century. More recently a beacon was erected in 1988 for the 400th anniversary of the defeat of the Armada, and there have been beacons lit more recently, but I am unsure whether this is the 1988 structure or a later one. It was most recently used for the Queen's platinum jubilee earlier this year, as marked by the swinging sign placed by the Scouts.

The whole of the hilltop is a scheduled monument, as it contains archaeology of the neolithic, bronze and iron age and medieval periods.