Recent archaeological survey conducted in Mali in the Guringin Valley, located in the Se ́no Plain, as well as at the top of the nearby Bandiagara Escarpment, has produced evidence allowing the characterisation of numerous settlement sites and locations at which prehistoric metallurgy was practised. The latter have abundant surface material, mainly consisting of ceramics that show a considerable diversity of decoration. Analysis of the surface pottery assemblages, complemented by that of stratified assemblages from a test pit at one of the sites, indicates important inter-site differences. The results suggest that water, a rare and precious resource in this sandy Sudano-Sahelian plain, attracted the settlement of different populations from Neolithic times to the present, with a particular density of occupation during the first and early second millennia AD. Groups of sites of similar modest size evoke the rural settlements of the Me ́ma area of Mali more than the settlement clusters of the Inland Niger Delta, which are defined by large sites surrounded by satellite settlements in a context of proto-urbanisation.