The analysis is based on a report from the Laboratory of Geomorphology and Remote sensing of the University of Liege concerning Mont-de-l'Enclus hill (Province of Hainaut, 20 kilometers north of the city of Tournai). After a landslide in a street of the hill, the regional administration ordered, in 1998, a detailed study of the hillside (7 square kilometres). The report is in three parts. The first one analyses the influence of human settlement on the landslide hazards. The second one studies all the environmental components in relation to the landslides. Finally, a synthesis map gathers the most important conclusions drawn from the first two parts. The Belgian soil map is very useful when combined with geological and geomorphological data. This is called geo-morpho-pedologic approach. Analysis and comparison have been made with the geographical information system Arc/Info-Arcview. The landslide of the