It is said to be the second smallest keep in England, since the rooms are only about 20 feet square. The present entrance passes through what was originally a window into what was a cellar.
The original entrance was on the right on the next floor. The keep was deliberately damaged after its capture by Parliamentary forces during the civil war, but was repaired in 1848 with smooth-faced limestone blocks, which can be clearly seen.The views from the old castle walls are breathtaking, as is the walk up the hill. Fortunately, you can break the journey on the way up by visiting the Castle Museum which brings to life the history and geology of the Ribble Valley.