POWIS CASTLE: THE OUTER BAILEY C.J. ARNOLD Excavation and recording in the south corner of the Outer Bailey of Powis Castle in 1984-5 demonstrated the predictable existence of curtain walls on the south-east and south- west sides of the bailey and a south corner tower (Arnold 1986). Earlier and more recent consolidation work by the National Trust has provided additional evidence regarding the Outer Bailey. Figure 1. Plan of part of Outer Bailey showing location of recorded sections.