Taken from Sutton Brow across Happy Valley, the left of this picture shows Roulston Scar. The flat top is the Yorkshire Gliding Club, but was once part of the massive “for show only” hill fort complex. It dominates the area. Across The Devil’s Leap is Hood Hill.
Image credit: Nigel Rogers
I say "for show only" as its tricky to determine the use of this place. One idea is that it was part of a chain of defence against the Romans, but another suggests it marked the boundary of a tribal area and wasn't used as a settlement as such (based on there has been no evidence found to suggest anyone lived there for any reasonable length of time. The links at the bottom of the page provides more details of this.