About USGS - Geophysical Data Grids for the Conterminous United States
USGS - Geophysical Data Grids for the Conterminous United States- The data sets include magnetic anomalies; Bouguer gravity anomalies; isostatic residual gravity anomalies; uranium, thorium, and potassium gamma-ray measurements; and topography with and without bathymetry.
