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

Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
HancockM/R-D121.9 m 4.80 km442 km
Michigan B (Keweenaw)M-Dz152.4 m above ground0.80 km3,701 km