Geographic Information Systems
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Most of the cost of a Geographic Information System (GIS) is in creation of data sets. It is important to focus that effort on what data is needed and what data may be readily available. This pamphlet reviews some of the common data sets needed by a county for planning and data which can be created at little or no cost.
When preparing a map by hand, with a Computer Aided Design (CAD) system, or with a Geographic Information System (GIS), selection of colors is important.