Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
GreensboroM/R-D121.9 m 4.80 km5,122 km
North-central N.C.M-D152.4 m above ground1.60 km10,029 km
Milton-RoxboroM-Dz121.9 m above ground0.80 km4,688 km
South-central PiedmontM-Dz152.4 m above ground0.80 km10,621 km