Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
AllianceM/R-D121.92 m 9.66 km2,528 km
Hot SpringsM/R-D121.92 m 4.83 km4,711 km
S.W. S. Dakota-E. WyomingM-D152.4 m above ground1.00 km10,581 km