Desborough Castle consists of a Norman ringwork, partly overlying a mound, possibly a barrow reused as a Saxon moot. Both lie within a square enclosure, possibly an Iron Age or Late Bronze Age settlement or stock enclosure.
This valley has always been an important communication route, and has had a known trackway running through since the Bronze Age. The fort lies within what is these days a landscaped grass area, just below the Castlefield council estate and looks over High Wycombe.