This paper furnishes a brief, but exhaustive, description of the tectonics and stratigraphy of the Campania region (southern Italy). The attached geological map (Main Map) at 1:250,000 scale should be considered as a first attempt to provide a more detailed geological cartography of the entire region, with respect to the available literature, in the light of scientific advances in stratigraphy and tectonics reached in the last years. The geological setting, proposed in this study, is the result of a review and reinterpretation of the current geological knowledge plus original surveys carried out in some key sectors of the area. We also include a schematic stratigraphic chart and three geological cross-sections illustrating the tectonic architecture in depth for the internal and external zones. The geodatabase was compiled in GIS format and subsequently imported in vector graphic software to allow a classical cartographic design.