Attean (ME)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by USGS
Date flown 08/57-09/57
Line spacing 0.4 (km)
Altitude 152.4 (m) above ground
Total distance 1,851 (km)
References
Counties Somerset
Overlapping surveys

Data: Magnetic (M-Dz)