In addition to the construction of dams, other anthropogenic factors such as cultivation in the lake vicinal lands, road construction near the dam and transportation of heavy vehicles as well as some natural factors including poor vegetation cover, tectonic activities, wind direction and wind speed (especially in loess covered regions), water level fluctuations etc., lead to increase in the occurrence of this phenomenon. In this study, the shores on both sides of Dousti Dam in northeast of Iran, located in loess covered region, were examined in terms of landslide occurrence and factors affecting the occurrence of landslide in each side. In this regard, 38 landslides were identified in the study area using Google Earth images. Results showed 10.65 m mean annual retreat for the current landslides. Comparing the eastern and western shoreline indicates that the anthropogenic activities, especially cultivation in reservoir vicinal lands, by providing suitable conditions for water infiltration and thus creating proper conditions for the occurrence of landslides, are the most important factor that triggers the landslide in the western shoreline however, in the eastern shoreline, lack of any human activity, including agriculture, roads, etc., is prevented the occurrence of landslides. Transportation of heavy agricultural vehicles in the western lands of the dam along with the impact of wind operation have intensified the landslides in the western shoreline.