Western Virginia (VA)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by LKB
Date flown 04/72-06/72
Line spacing 0.8 (km)
Altitude 152.4 (m) above ground
Total distance 12,231 (km)
References
Counties Albemarle - Alleghany - Amherst - Augusta - Bath - Bedford - Bland - Botetourt - Carroll - Clarke - Craig - Culpeper - Fauquier - Floyd - Fluvanna - Franklin - Frederick - Giles - Greene - Highland - Louisa - Madison - Montgomery - Nelson - Orange - Page - Pulaski - Rappahannock - Roanoke - Rockbridge - Rockingham - Shenandoah - Warren - Wythe - Bedford - Buena Vista - Charlottesville - Covington - Harrisonburg - Lexington - Radford - Roanoke - Salem - Staunton - Waynesboro - Winchester - Berkeley - Greenbrier - Hampshire - Hardy - Jefferson - Mercer - Monroe - Morgan - Pendleton - Pocahontas - Summers
Overlapping surveys

Data: Magnetic (M-Dz)