Phoenix '63 (AZ)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by U.S. Geological Survey
Date flown 03/63
Line spacing 1.6 (km)
Altitude 732 (m) by barometer measurement
Total distance 1,770 (km)
References
Counties Maricopa - Pinal
Overlapping surveys

Data: Magnetic (M-Dz)