The World Bank and other international agencies have identified gully erosion as a major threat in Nigeria's Southeast, notably Enugu State. The Geographic Information System, or GIS, has been involved in recorded attempts to deal with this calamity as a bold way of providing trustworthy and long-term remedies to gully destruction. The researcher obtained the information, materials, and techniques via onsite research, interviews, high-resolution imagery from satellites, a digital elevation model (DEM), as well as ArcGIS 10.3 software as a component part of a Geographic Information Systems (GIS) consultancy service that was offered to Enugu State NEWMAP by REDDFOX Nigeria Limited supervised by the writer of the article, who worked as the consultants' overseeing officer in facilitating the approval process of the consultancy service. During the procedure, a total of 508 potential gully erosion sites were identified, with 51 of them finally being recognized. The detailed results were divided into two parts: (a) map products and (b) GIS products. The map deliverables included composite maps that showed all erosion sites, highways, and communities; land cover; erosion risk; flood vulnerability; digital soil maps; and topographic and watershed maps. The GIS deliverables, on the other hand, came in the form of a folder containing ArcGIS 10.3 software. The folder contains composite site data as well as separate site subfolders. The erosion site data composites were further classified into four types: maps, composite shapefiles, database documents, and database quarry platforms. All of this was given a personal touch through awareness-raising, stakeholder dialogue, and involvement. Based on the preceding, this method is deemed an effective and unique method for detecting gully erosion sites, their distributions, causes, and consequences within the research region. A multi- and cross-sectoral Environmental Management Information System (EMIS) is advocated as a model for monitoring and management for the sake of sustainability.

Keywords: Gully erosion, GIS, Mapping gullies, NEWMAP, Consultation