| Survey type | M-Dz (magnetic; digitized from contour maps) |
|---|---|
| Flown by | U.S. Geological Survey |
| Date flown | 07/68 |
| Line spacing | 0.8 (km) |
| Altitude | 1524 (m) by barometer measurement |
| Total distance | 1,561 (km) |
| References | |
| Counties | Oxford - York - Belknap - Carroll - Grafton - Merrimack - Strafford - Sullivan |
| Overlapping surveys |
| Metadata | Questions & Answers - Outline - Parseable text - XML |
|---|---|
| Download | NH0642.zip |
