Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
BluefieldM/R-D121.92 m 9.66 km2,784 km
Southwest PiedmontM-Dz152.4 m above ground0.80 km5,794 km
South-central PiedmontM-Dz152.4 m above ground0.80 km10,622 km
Western VirginiaM-Dz152.4 m above ground0.80 km12,231 km
Winston SalemM/R-D121.92 m 4.83 km5,123 km