The Clanwilliam Landslide, April 2nd 1999, occurred on a south facing slope above Clanwilliam Lake, approximately 13 km west of Revelstoke, B.C. The landslide is located near the western margin of the Shuswap Metamorphic Complex and a major tectonic structure known as the Monashee Decollement. The failed mass is comprised of gneissic material. A large normal fault and synform axis have been mapped within 500 metres of the landslide initiation zone. A review of the published records shows that no earthquake events were recorded prior to the failure. The climatic record showed that pronounced freeze-thaw cycles occurred the day before and on the day of the failure. Preliminary discontinuity surveys and rock mass descriptions data on the source zone of the landslide are presented. These measurements were used to perform a preliminary kinematic analysis in order to identify potential slope failure mechanisms. This was followed by limit equilibrium wedge analysis using both a conventional deterministic and a combination analysis approach. Block theory analysis was undertaken in order to identify critical blocks and block shapes within the landslide rock mass. Having investigated the kinematics of the rock slope the results of this study were used to perform a preliminary 3D-distinct element analysis