National Geospatial-Intelligence Agency

About the Author

The National Geospatial-Intelligence Agency (NGA), a pivotal agency within the United States Intelligence Community, is renowned for its expertise in geospatial intelligence, providing essential mapping, charting, and imagery analysis to support national security and military operations worldwide. Established to deliver accurate and timely geospatial data, the NGA collaborates with the National Reconnaissance Office and other partners to produce authoritative resources that guide navigation, intelligence gathering, and strategic decision-making. Their publications, such as U.S. Chart No. 1 - 13th Edition: Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts, serve as indispensable references for mariners, cartographers, and professionals relying on precise navigational information to ensure safe and effective voyages across global waters.