Minnesota Coop Southwest (MN)

Survey type M-Dz (magnetic; digitized from contour maps)
Flown by U.S. Geological Survey
Date flown 04/64-05/64
Line spacing 1.6 (km)
Altitude 304.8 (m) above ground
Total distance 16,173 (km)
References
Counties Dickinson - Emmet - Kossuth - Lyon - Osceola - Blue Earth - Brown - Cottonwood - Faribault - Jackson - Le Sueur - Lincoln - Lyon - Martin - Murray - Nicollet - Nobles - Pipestone - Redwood - Renville - Rock - Sibley - Watonwan - Brookings - Minnehaha - Moody
Overlapping surveys

Data: Magnetic (M-Dz)