Integrated geophysical methods, particularly refraction seismic, resistivity sounding andrnprofiling and magnetic were conducted on the landslide affected part of the Bonga town.rnBased on the data obtained in the survey refractor velocity and depth maps, total fieldrnmagnetic and derivative maps, resistivity maps at three depth levels (AB/2=10, 45, and 100rnm) and resistivity and seismic sections on selected profiles are prepared.rnTertiary volcanic, namely basalt and tuff, are the main rocks covering the Bonga townrnlandslide area. These rocks were affected by high degree of weathering that is responsiblernfor the formation of different grade, from weak to relatively strong basalt and fine torncoarse-grained tuff. The quatematy colluvial and residual soils are found in the arearncovering the volcanic on the gentle to moderately sloping topography, whereas the alluvialrnsoil is occupying the flood plains. The results of these surveys give that the saturation ofrnunconsolidated colluvial and alluvial soil and the highly weathered volcanic formations ofrnbasaltic origin from recharge of groundwater system and the high intensity and long termrnrainfall in the area are determined to have a major contribution to landslide processes of thernBonga town. This high intensity and long duration rainfall by wetting and increasing thernvolume of the loose colluvial formation to introduce imbalance between the shearing andrnresisting forces that generate instability. Geophysicaly inferred structural features wererndelineated that have strong correlation with the occurrences and orientation of therngeologically mapped active landslide scarps in the area. The landslide area is classified into five zones based on the measured physical responses,rnsuch as resistivity, P-wave velocity and total field magnetic intensity, together with therngeological observations of which Zone five (Z-5) is determined to be the most unstable onernthat favour landslide occurrences. Finally, some preliminary remarks and recommendationsrnare forwarded which would help to better understand the overall landslide process in thernarea. The recommendations are thought to lead towards taking mitigating and controllingrnmeasures by minimizing the effect of landslide occurrences on the wellbeing of therndwellers in particular and infrastructure development of the area in general.