Abstract: The study was able to describe the ancient landslide debris around Güzelyalı Village. Also, the remainsof horrendous ancient landslides have been discovered in northeast of Erenköy Village in Çanakkale. In this frame,aim of the study is to determine the preparatory and triggering factors that form the landslides by analyzing theoccurrence and development mechanisms of these landslides with the geological and geomorphologic methods. Theevidence for the ancient landslide triggered by 1875 Erenköy-Çanakkale Earthquake presented in this paper, which islocated near Erenköy. Ancient landslide complex around Erenköy-Güzelyalı area has the distinction of having one ofthe largest, landslides in Çanakkale. The total area of the ancient landslides is approximately 3.75 square kilometersin size. Historical landslides near Erenköy have been noticed by land features bearing two hallmark characteristics.These are: a jumbled assortment of rocks at the base of a slope, and a cuplike or sharp-straight topography cutout of the hills where the slide might have come from. Post 1875 erosion activity have partially erased much of theevidence of landslide. It was assumed that landslide deposits near Güzelyalı Village were produced by multiplelandslide events. Probably some of the slides, originated by earthquakes consisting of many events, likely several hundred years between them. Mentioned landslide debris was recently moved again as creep-type landslides. Ancientlandslide debris offers danger signs for northeastern Güzelyalı housing developments. Ancient Güzelyalı’s landslidedebris and related landslide is older than Erenköy’s landslide.