Mt. St. Helens Refly (WA)

Survey type M-D (magnetic; collected in digital form)
Flown by Applied Geophysics, Inc.
Date flown 09/81
Line spacing 1 (km)
Altitude 3505 (m) by barometer measurement
Total distance 281 (km)
References
Counties Cowlitz - Skamania
Overlapping surveys

Data: Magnetic (M-D)