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What is GIS?
GIS stands for geographic information system. A GIS is made up of digital map layers, each with an underlying database. Each map layer has real world coordinates so that layers can be overlaid to view map features in relation to other map features. Each layer's database contains information about those map features. Database information can be queried or used to color-code the map. In addition, external databases can be joined to a map layer so that additional information can be displayed on a map. GIS is used in North Reading to help staff, committees, residents, and property owners make good decisions. GIS is intelligent mapping.
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