Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
BellevilleM/R-D121.9 m 9.60 km2,761 km
Southeast Illinois '77M-D304.8 m above ground1.60 km12,231 km
Hicks Dome 2019M/R-D100 m above ground0.20 km61,974 km
PaducahM/R-D121.9 m 9.60 km2,566 km