| Survey type | M-D (magnetic; collected in digital form) |
|---|---|
| Flown by | Aero Service Corporation |
| Date flown | ?/89-?/91 |
| Line spacing | 1 and 10 (km) |
| Altitude | 200 (m) above ground |
| Counties | Allamakee - Howard - Kossuth - Mitchell - Winnebago - Winneshiek - Worth - Blue Earth - Carver - Dakota - Dodge - Faribault - Fillmore - Freeborn - Goodhue - Hennepin - Houston - Le Sueur - Mower - Nicollet - Olmsted - Rice - Scott - Sibley - Steele - Wabasha - Waseca - Winona - Wright - Buffalo - La Crosse - Pepin - Pierce - Trempealeau - Vernon |
| Overlapping surveys |
| Download | magnetics.htm |
|---|