Olympic Pen.-South (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 762 (m) by barometer measurement
Total distance 2,471 (km)
References
Counties Grays Harbor - Jefferson - Mason - Thurston
Overlapping surveys

Data: Magnetic (M-Dz)