Map application displays objects belonging to the geohazard category. There are abandoned mine lands, underground mines, mining waste repository, ground instabilities objects and radon map. A short description is supplemented by links to more information. The layer of underground mines contains links to documentary photos.
The application is based on CGS own technology to display map services using ESRI API 3.x. Its functionality and design are optimized for touch devices and small displays. Geolocation support makes the application suitable for field use. Base maps - detailed topographic maps and aerial photos - are provided by the company Seznam.cz, a.s..