In the course of the National Archaeology Collections Inventory Project (NACIP), the RMAH’s artefacts collected from the Neolithic flint mining complex at Spiennes (Mons, Belgium) have been thoroughly re-identified and classified according to their original contexts (if possible). An exhaustive inventory and the retrieval of all scientific documentation concerning the collection have made a detailed overview of the most important arrivals of this collection at the museum. The electronic accessibility of the collection has furthermore facilitated its management that will, in turn, promote renewed scientific research.