Gulf of Alaska (AK)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by USN
Date flown 04/70-05/70
Line spacing 0.8 and 2.49 (km)
Altitude 304.8 (m) above ground
Total distance 30,899 (km)
References
Counties - Kenai Peninsula - Kodiak Island - Sitka - Valdez-Cordova - Yakutat
Overlapping surveys

Data: Magnetic (M-Dz)