Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
FremontM/R-D121.9 m 4.80 km4,546 km
Nebraska South '63M-A304.8 m above ground3.20 km5,544 km
Ashland 2007M/EM-D30 m above ground0.27 km361 km
SwedeburgM/EM-D40 m above ground0.28 km272 km