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

Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
AuroraM/R-D121.9 m 9.60 km2,666 km
DavenportM/R-D121.9 m 9.60 km2,666 km
Northwest IllinoisM-D548.6 m (barometer)4.80 km2,341 km