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Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


Geographic Information Systems


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A GIS is an electronic information system, which provides a geo-referenced database to support management decision-making.

Used for:

  • GIS


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