| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Bluefield | M/R-D | 121.9 m | 9.60 km | 2,784 km |
| Mt. Rogers | M-Dz | 1830 m (barometer) | 0.80 km | 811 km |
| Southwest Virginia | M-Dz | 1524 m (barometer) | 2.40 km | 4,828 km |
| Southwest Piedmont | M-Dz | 152.4 m above ground | 0.80 km | 5,793 km |
| Winston Salem | M/R-D | 121.9 m | 4.80 km | 5,122 km |