Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
GilletteM/R-D121.9 m 4.80 km4,723 km
New CastleM/R-D121.9 m 4.80 km4,763 km
Powder River BasinM-D121.9 m above ground9.60 km9,948 km
S.W. S. Dakota-E. WyomingM-D152.4 m above ground1.00 km10,581 km