| Survey type | M-D (magnetic; collected in digital form) |
|---|---|
| Flown by | Aero Service Corporation |
| Date flown | ?/61 |
| Line spacing | 1.6 (km) |
| Altitude | 150 (m) above ground |
| Total distance | 2,500 (km) |
| Counties | Anoka - Carver - Chisago - Dakota - Goodhue - Hennepin - Ramsey - Scott - Sherburne - Sibley - Washington - Wright - Pierce - Polk - Saint Croix |
| Overlapping surveys |
| Download | magnetics.htm |
|---|