The aim of this paper is to highlight the neglected role of archaeological archives in Cultural Resource Management in particular and in the discipline of archaeology in general. Through reference to a major recent survey of the size, condition, usage and future prospects of archaeological archives in England, it is argued that the neglect of archives leads to fundamental questions regarding the purpose of archaeology in general. Why are archaeological archives generated and kept ‘for posterity’? If they are worthy of retention, how can they be better used and integrated into the discipline? It is argued that there is a need to recognize the ‘ex situ’ archaeological resource as a concept and that archaeology should recognize that the study of this resource should be a major area of activity alongside the generation of new information through fieldwork.