Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
MilbankM/R-D121.9 m 9.60 km2,365 km
SwiftM-Dz304.8 m above ground1.60 km14,162 km
West-central surveysM-D150 m above ground0.40 km82,000 km
Southwestern surveysM-D200 m above ground0.50 km81,000 km
New UlmM/R-D121.9 m 4.80 km4,586 km
St CloudM/R-D121.9 m 4.80 km4,473 km