
                    GRASS version 4.0

GRASS geographic information system (GIS) for natural resource
management, image processing, and map digitizing/editing contains
both raster and vector functions, but analytical functions are 
performed on raster (grid cells) files.  Capabilities server the
map development, analysis, and display needs of biologists,
archeologists, entomologists, foresters, park managers, geologists,
soil scientists, and regional planners.
