Survey type | M-D (magnetic; collected in digital form) |
---|---|
Flown by | Aerial Surveys |
Date flown | 04/77-06/77 |
Line spacing | 1.6 (km) |
Altitude | 2134 (m) by barometer measurement |
Total distance | 2,011 (km) |
References | |
Counties | Clackamas - Hood River - Linn - Marion - Multnomah - Wasco |
Overlapping surveys |
Metadata | Questions & Answers - Outline - Parseable text - XML |
---|---|
Download | OR_3112A.zip |