St. Anton a/A is a small moutain village with approximately 2.500 inhabitants, situated 100 km in the West of Innsbruck at the boarder between Vorarlberg and Tyrol (Austria). During the winter-season the number of people living in St. Anton increases up to 12.000. The overnight stays per year have increased from about 32.000 in 1947 to about 1 million in 2000. The intense touristic development necessitate the investigation of a so called Integrated Risk and Crisis Management Plan. The connection of practical needs - related to natural hazards - with most modern prognosis and simulation technologies is managed by Geographic Information Systems. The structure and organisation of the Risk and Crisis Management Plan will be shown in the paper.