In this paper, the creation of a susceptibility zonation map for landslide occurrence, using GIS, for the municipality of Zagori, is described. The map consists of five risk zones and was created by seven factors, linearly combined and properly calibrated, according to expert geoscientists as these factors are concerned to contribute to landslide occurrence. Based on this map, it is possible to determine the settlements, which aredirectly threatened by landslides. Moreover, the anticipation ofpotential landslide phenomena is possible. Given that the municipality of Zagori is characterized  by intense landslide activity, a techno- economic study is conducted, in order to deal with the landslide that took place in the Provincial Road Petra – Demati. More specifically, an extensive description of the phenomenon is carried out, its causes are interpreted, suggestions for the damage recovery are expressed and an estimation of the total cost of all necessary labor and materials is made, for completing the project.