Nowadays, it’s difficult to envisage its original location on a clifftop above where the River Tawe used to flow, controlling a harbour and important east–west route along southern Wales.
Erbyn hyn, anodd yw dychmygu ei leoliad gwreiddiol ar ben clogwyn uwchlaw lle arferai Afon Tawe lifo, gan reoli harbwr a llwybr pwysig rhwng y dwyrain a’r gorllewin ar hyd de Cymru.