The Serra do Mar, in the state of Paraná, Brazil, is marked by a relief with unstable areas, which is eventually subjected to mass movements along their slopes, primarily caused by the large amounts of rainfall that occur in such area. Within this scenario fits a pipeline conduit for the transportation of fuels, often bordering slopes in a situation of precarious balance. It is widely known that lithological, structural and geomorphic features play a major role in the slopes stability. Thus, it is important to understand the dynamics of these movements in order to preserve the physical integrity of the duct. Areas where the slope represents critical points of instability were selected for the study along the pipeline section. The main objective of this work is to investigate the geological and geotechnical features of the area cut by the pipeline in order to assess possible mass movements. This work was achieved by a combination of field research, remote sensing, characterization of the colluvial soils and obtaining of geomechanical and hydraulic parameters.