This is a series of maps, in GIS shapefile format, for each of 48 countries in Africa, that show hydrogeology (aquifer type and productivity) and geology (with particular relevance to hydrogeology) at 1:5 million scale. The maps have two hydrogeological themes: -geology with geological categories that reflect significant hydrogeological units; and -hydrogeology, combining classifications of aquifer type and productivity. The maps were produced as part of the Africa Groundwater Atlas project.