Central Wisconsin '61 N. (WI)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by Fairchild Aerial Surveys, Inc.
Date flown 04/61
Line spacing 0.8 (km)
Altitude 152.4 (m) above ground
Total distance 2,253 (km)
Counties Adams - Clark - Jackson - Juneau - La Crosse - Monroe - Wood
Overlapping surveys

Data: Magnetic (M-Dz)