In Indonesia, sediment related disasters like landslides and debris flows have caused damage to the nature in recent years. In Mt. Bawakaraeng Caldera, South Sulawesi, Indonesia, a large scale landslide including a debris flow occurred which had produced a volume of about 232 million m3 sediment in March 2004. This research concerns such sediment-related disasters in Mt. Bawakaraeng Caldera. The specific objectives of the research are enunciated as follows: to evaluate slope stability based on field study and 3-D slope stability analysis using GIS, and to estimate the volume of the landslide,...