Magnetic anomaly map of North America

Airborne measurement of the earth's magnetic field over all of North America provides gridded data describing the magnetic anomaly caused by variations in earth materials and structure.

• Database documentation (metadata)
• Interactive maps
  • Conterminous US
  • Detailed surveys in the western US
• Download data for the conterminous US
  • Format compatible with Oasis montaj viewer software
    • Geosoft GRD format data file
    • accompanying georeferencing information file


• Subsets, related, and derived data products