Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
BluefieldM/R-D121.9 m 9.60 km2,784 km
Mt. RogersM-Dz1830 m (barometer)0.80 km811 km
Southwest VirginiaM-Dz1524 m (barometer)2.40 km4,828 km
Southwest PiedmontM-Dz152.4 m above ground0.80 km5,793 km
Winston SalemM/R-D121.9 m 4.80 km5,122 km