Napa Valley (CA)

Survey type M-D (magnetic; collected in digital form)
Flown by Scintrex 
Date flown 12/96-01/97
Line spacing 0.53 (km)
Altitude 243.8 to 304.8 (m) above ground
Total distance 15,900 (km)
References
Counties Marin - Mendocino - Napa - Solano - Sonoma - Yolo
Overlapping surveys

Data: Magnetic (M-D)