Mineral Resources
Online Spatial Data
Magnetic anomaly
Aeromagnetic surveys
Iowa
Airborne geophysical surveys
Survey name
Type
Altitude
Spacing
Flight line distance
Ft Dodge
M/R-D
121.9 m
9.60 km
2,634 km
Manson (Blanden)
M-A
304.8 m above ground
1.60 km
1,770 km
Waterloo
M/R-D
121.9 m
9.60 km
2,634 km