Copper River '55 (AK)

Survey type M-D (magnetic; collected in digital form)
Flown by U.S. Geological Survey
Date flown 06/55
Line spacing 1.6 (km)
Altitude 1219 (m) by barometer measurement
Total distance 6,759 (km)
References
Counties Matanuska-Susitna - Valdez-Cordova
Overlapping surveys

Data: Magnetic (M-Dz)