Aroostook North '50 (ME)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by USGS
Date flown ?/50
Line spacing 0.4 (km)
Altitude 152.4 (m) above ground
Total distance 2,361 (km)
References
Counties Aroostook
Overlapping surveys

Data: Magnetic (M-Dz)