Yolla Bolly (CA)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by Aero Service Corporation
Date flown 07/78
Line spacing 0.8 (km)
Altitude 304.8 (m) above ground
Total distance 1,182 (km)
References
Counties Mendocino - Tehama - Trinity
Overlapping surveys

Data: Magnetic (M-Dz)