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What is GIS Mapping?

What is GIS?

GIS is short for Geographic Information Systems and it is an organized collection of computer hardware, software, geographic data, and personnel designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information for town business. Below is an example of how a GIS layers sets of data to create a final composite overlay. 

layers comprising a g.i.s. diagram