Any administrative, research, economic and technical forms of activity related to a specific site require proper information, which is current, objective and full. The larger area covered by the activity, the more difficult gathering data on the site. Information can be collected by a number of methods. These are: direct field studies, data collation and processing, remote acquisition of current data, and combination of these methods. The author discusses the remote method of data acquisition, i.e. teledetection. The importance of soil is addressed, especially its utilisation method.