Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
LemmonM/R-D121.9 m 4.80 km4,256 km
Mc IntoshM/R-D121.9 m 9.60 km2,430 km
PierreM/R-D121.9 m 9.60 km2,565 km
Rapid CityM/R-D121.9 m 4.80 km5,009 km
Lawrence CountyM-A152.4 m above ground0.80 km1,689 km
S. South DakotaM-Dz1311 m (barometer)1.60 km28,689 km
NemoM/R-D121.9 m above ground0.40 km238 km