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
HancockM/R-D121.9 m 4.80 km442 km
Northeastern surveysM-D150 m above ground0.40 km100,000 km
QueticoM/R-D121.9 m 9.60 km297 km
Two HarborsM/R-D121.9 m 9.60 km1,364 km