Explore NGDA Geodetic Control Data Resources

About NGDA Geodetic Control
Survey control points or other related data sets which are accurately tied to the National Spatial Reference System (the official, common federal system for establishing coordinates for geospatial data that are consistent nationwide). Geodetic control examples include: passive geodetic control marks, active geodetic observing systems, data from Global Navigation Satellite Systems (e.g., GPS), gravity measurements, and models of the earth’s gravity field (geoid).
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Community Details
Sponsor: FGDC (email)
Theme Lead Agency: National Oceanic and Atmospheric Administration (NOAA)
Theme Lead: Dr. Dan Roman (NOAA)