| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| San Antonio | M/R-D | 121.9 m | 4.80 km | 5,589 km |
| Seguin | M/R-D | 121.9 m | 4.80 km | 4,296 km |
| Texas Coastal Plain '56 | M-Dz | 152.4 m above ground | 1.60 km | 20,317 km |
| Lockhart | M-D | 457.2 m (barometer) | 9.60 km | 619 km |