A Geographic Information System (GIS) is a system used to gather data and incorporate it in order to store, scrutinize, distribute, and show geographic information. GIS data displays actual world features such as elevations, terrain, and transportation networks, in a digital format. Images that are displayed come from the area where the information was retrieved. Users can take the information for such purposes as analyzing the digitally displayed data, mapping the data, and editing the data. A GIS will include application software for aerial photography, surveying land, extensive geographical mapping, remote sensing, and much more. It is often used to study global problems in an effort to find solutions much more quickly.