Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
HuronM/R-D121.9 m 9.60 km2,348 km
MitchellM/R-D121.9 m 9.60 km2,380 km
Sioux FallsM/R-D121.9 m 9.60 km2,380 km
WatertownM/R-D121.9 m 9.60 km2,381 km