West-central Idaho (ID)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by Scintrex 
Date flown 06/72-07/72
Line spacing 3.2 (km)
Altitude 3353 (m) by barometer measurement
Total distance 5,643 (km)
References
Counties Adams - Boise - Gem - Payette - Valley - Washington - Baker - Malheur
Overlapping surveys

Data: Magnetic (M-Dz)