Geographic Information System (GIS)
�GIS: a computer system used for displaying and manipulating geographic data that shares a common coordinate system
A Geographic Information Systems (or GIS) was used to conduct the land use analysis.  GIS is a system of computer hardware and software that can be used to display and manipulate information about a geographic area.
GIS is commonly used to display data such as land use types, elevation, and soil type.  It can also be used to combine these attributes and to generate models that predict trends in other data.
This is a GIS contour map of the Togus Pond watershed.  It shows the lake and the slope of the surrounding land.