Survey name | Type | Altitude | Spacing | Flight line distance |
---|---|---|---|---|
Crystal City | M/R-D | 121.9 m | 2.40 km | 5,994 km |
San Antonio | M/R-D | 121.9 m | 4.80 km | 5,589 km |
Texas Coastal Plain '56 | M-Dz | 152.4 m above ground | 1.60 km | 20,317 km |
Northwest San Antonio | M-Dz | 853.4 m (barometer) | 2.00 km | 13,703 km |