This volume presents a collection of papers by specialists contributing to the activities of the International Geographical Union Commission on `Natural Hazard Studies'. The main topics are: morphotectonic activities, slope movements, glacial, erosion and weathering hazards and man-made rapid modellation processes. Research on basic geomorphological hazards in high mountains can be understood not only as a set of case studies, but primarily as a rare opportunity for the preparation of theoretical models and for the understanding of the general architecture of the origin of natural disasters. Audience: This specialized book will be useful for natural scientists, graduate geographers and geologists and postgraduate students in earth sciences.