Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
BluefieldM/R-D121.9 m 9.60 km2,784 km
Southwest PiedmontM-Dz152.4 m above ground0.80 km5,793 km
South-central PiedmontM-Dz152.4 m above ground0.80 km10,621 km
Western VirginiaM-Dz152.4 m above ground0.80 km12,231 km
Winston SalemM/R-D121.9 m 4.80 km5,122 km