Mineral Resources
Online Spatial Data
Magnetic anomaly
Aeromagnetic surveys
South Dakota
Airborne geophysical surveys
Survey name
Type
Altitude
Spacing
Flight line distance
Hot Springs
M/R-D
121.9 m
4.80 km
4,710 km
New Castle
M/R-D
121.9 m
4.80 km
4,763 km
S.W. S. Dakota-E. Wyoming
M-D
152.4 m above ground
1.00 km
10,581 km