Copper River '54 (AK)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by USGS
Date flown 06/54
Line spacing 3.22 (km)
Altitude 1219.2 (m) by barometer measurement
Total distance 2,173 (km)
References
Counties Matanuska-Susitna - Valdez-Cordova
Overlapping surveys

Data: Magnetic (M-Dz)