1. Mineral Resources
  2. Online Spatial Data
  3. Magnetic anomaly
  4. Aeromagnetic surveys
  5. Minnesota

Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
MilbankM/R-D121.9 m 9.60 km2,365 km
SwiftM-Dz304.8 m above ground1.60 km14,162 km
West-central surveysM-D150 m above ground0.40 km82,000 km