| Survey type | M/EM-D (magnetic; airborne electromagnetic; collected in digital form) |
|---|---|
| Flown by | DIGHEM LTD. |
| Date flown | 01/81-03/81 |
| Line spacing | 0.2 (km) |
| Altitude | 50 (m) above ground |
| References | |
| Counties | Clackamas - Hood River |
| Overlapping surveys |
| Download | ofr8392 |
|---|