Duluth (MN-WI)

Survey type M/R-D (magnetic; radiometric; collected in digital form)
Flown by Aero
Line spacing 9.66 (km)
Altitude 121.92 (m)
Total distance 2,260 (km)
Counties Aitkin - Carlton - Cass - Crow Wing - Kanabec - Mille Lacs - Morrison - Pine - Saint Louis - Burnett - Douglas - Washburn
Overlapping surveys

Data: Magnetic, radiometric (NURE) (NURE)