North-central N.C. (NC)

Survey type M-D (magnetic; collected in digital form)
Flown by GeoMet.
Date flown 10/75-12/75
Line spacing 1.61 (km)
Altitude 152.4 (m) above ground
Total distance 10,029 (km)
References
Counties Alamance - Alexander - Alleghany - Caswell - Chatham - Davidson - Davie - Durham - Forsyth - Guilford - Iredell - Montgomery - Moore - Orange - Person - Randolph - Rockingham - Rowan - Stokes - Surry - Wilkes - Yadkin - Carroll - Grayson - Henry - Patrick - Pittsylvania - Danville
Overlapping surveys

Data: Magnetic, radiometric (M/R-D)