GIS & Mapping

A Geographic Information System (GIS) is a computer based mapping system used for the creation, storage, and maintenance of geographic (spatial) digital data. The data is organized in layers and can be used for analysis and mapping for Town projects. Each layer has information (called attributes) in a database that relates to each data set. Examples of GIS data layers include base mapping (roads, buildings, water bodies, etc), utilities (water lines, sewer system, street lights), and Assessors tax parcels.