Standing over 900 feet above sea level Castle Hill dominates the local landscape, providing spectacular, often windswept views.
The history of human activity on the hill goes back over 4000 years.
The site was developed as an iron age hill fort, surrounded by defensive ditches and ramparts.
In the Middle Ages there was a castle on the hill, of which the well remains.
The present tower was built to commemorate Queen Victoria's Diamond Jubilee of 1897.
The site is a scheduled ancient monument. More information about the hill and its history can be found in displays at Tolson Museum.