Nautical - Hydrographic and Bathymetric Product

Bathymetry is the measurement and characterization of the seafloor's depth and features.  Bathymetric products will primarily depict the depth and topography of the seafloor.  Hydrography is more specialized in that it describes depth and bottom features (i.e., wrecks, tidal affects, coastal features, and navigational aides) in navigable waterways for the purposes of aiding the safe navigation of vessels.

See a listing of Maritime contacts.

NGA's Source Operations & Management Directorate and the Analysis & Production Directorate join in recognizing the life and achievements of Matthew Fontaine Maury—Pathfinder of the Seas and Father of Oceanography. See NGA's "Tributes to M.F. Maury" publication.


 Nautical - Hydrographic and Bathymetric Product Descriptions


 Product Search Sites

NGA Catalog of Hydrographic Products
Use the Catalog Search to retrieve specific product information as listed in the NGA Catalog of Hydrographic Products

 Additional Information and Resources

Defense Supply Center Richmond (DLA)
Military and US Government customers can place orders for NGA products with the Defense Logistics Agency.

Maritime Safety Information
The mission of the Maritime Domain is to provide global maritime geospatial intelligence in support of national security objectives including safety of navigation, international obligations, intelligence activities and joint military operations.

NGA Nautical charts thru NACO
Civilian customers can purchase NGA charts and product catalogs from the National Aeronautical Charting Office (NACO).