The OMB A–16 National Geospatial Data Asset (NGDA) Portfolio is organized into 17 NGDA Themes made up of one or more associated NGDA Datasets. Use these NGDA Theme pages to access authoritative resources including Theme Community Sites, featured maps, data, layers, webservices and more.
NGDA Themes
NGDA Portfolio Community
Address Theme
Biodiversity and Ecosystems
Cadastre
Climate and Weather
Cultural Resources
Elevation
Geodetic Control
Geology
Governmental Units and Administrative and Statistical Boundaries
Imagery
Land Use - Land Cover
Real Property
Soils
Transportation
Utilities
Water - Inland
Water - Oceans & Coasts