Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
CharlottesvilleM/R-D121.9 m 9.60 km2,756 km
RoanokeM/R-D121.9 m 9.60 km2,784 km
Roanoke Quad.M-Dz152.4 m above ground0.80 km11,265 km
Piedmont AreasM-Dz152.4 m above ground0.80 km10,782 km
Western VirginiaM-Dz152.4 m above ground0.80 km12,231 km