Olympic Peninsula '75 (WA)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by Geoterrex-Dighem
Date flown 01/75-02/75
Line spacing 3.2 (km)
Altitude 1280 (m) by barometer measurement
Total distance 1,026 (km)
References
Counties Clallam - Jefferson
Overlapping surveys

Data: Magnetic (M-Dz)