| Survey type | M-D (magnetic; collected in digital form) |
|---|---|
| Flown by | EG&G GeoMetrics, Inc. |
| Date flown | ?/81-?/83 |
| Line spacing | 0.4 and 4 (km) |
| Altitude | 150 (m) above ground |
| Total distance | 74,000 (km) |
| Counties | Aitkin - Beltrami - Benton - Carlton - Cass - Chisago - Crow Wing - Isanti - Itasca - Kanabec - Mille Lacs - Morrison - Pine - Saint Louis - Stearns |
| Overlapping surveys |
| Download | magnetics.htm |
|---|