South-central Arizona (AZ)

Survey type M-D&Dz (magnetic; collected in digital form; digitized from contour maps)
Flown by Aerial Surveys
Date flown 06/76
Line spacing 1.6 (km)
Altitude 1219 (m) by barometer measurement
Total distance 10,138 (km)
References
Counties Maricopa - Pima - Pinal - Santa Cruz
Overlapping surveys

Data: Magnetic (M-D&Dz)