Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. Geographic Information Systems Geographic information systems (GIS) are computer systems "capable of assembling, storing, manipulating, and displaying geographically referenced information." This site describes GIS technology, functions, and uses, such as calculating emergency response times during a natural disaster, or finding wetlands that need protection from pollution. From the United States Geological Survey (USGS). http://erg.usgs.gov/isb/pubs/gis_poster/ Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *