Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Northeast IowaM-A304.8 m above ground1.60 km12,713 km
La CrosseM/R-D121.9 m 9.60 km2,602 km
WasecaM-Dz304.8 m above ground1.60 km13,759 km
Southeastern surveys part 3M-D200 m above ground1.00 km km
Southwest WisconsinM-D304.8 m above ground0.80 km22,128 km
Wisconsin Tie LinesM-D304.8 m above ground0.80 km2,293 km