This research was carried out in Merangin Village on the Riau - West Sumatra route KM 82 – 89, Kuok District, Kampar Regency, Riau Province. Geographically located at100°48'21.36"E-100°51'31.99"E and 0°17'41.98"N- 0°20'5.34". The purpose of this research is to determine the properties of clay soil and its relationship to landslide events. The methods used are XRD, SEM and Atterberg Limit …