Geographic Names Information System

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The Geographic Names Information System (GNIS), developed by the USGS in cooperation with the U.S. Board on Geographic Names (BGN), contains information for almost 2 million physical and cultural geographic features in the United States and its territories. The Federally recognized name of each feature described in the data base is identified, and references are made to a feature's location by State, county, and geographic coordinates. The GNIS is the official repository of domestic geographic names information in the USA.

The GNIS also contains information on geographic names in Antarctica which are approved by the BGN for use by the Federal Government.

Information about foreign geographic feature names can be obtained from the GEOnet Names Server (GNS), developed and maintained by the National Geospatial-Intelligence Agency (NGA).