| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Crystal City | M/R-D | 121.9 m | 2.40 km | 5,994 km |
| Eagle Pass | M/R-D | 121.9 m | 4.80 km | 1,075 km |
| Laredo | M/R-D | 121.9 m | 4.80 km | 4,184 km |
| Three Rivers (Freer) | M-D | 152.4 m above ground | 1.60 km | 2,526 km |
| Laredo South | M-Dz | 762 m (barometer) | 3.00 km | 5,471 km |