Terlingua HUC8 13040204
A 2,851 km² sub-basin of the Rio Grande region in TX. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
61
Moderate
Drought index
103
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
35
20 springs · 4 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 103 | 0 | — | — |
| 2026-10-20 | 103 | 0 | — | — |
| 2026-10-19 | 103 | 0 | — | — |
| 2026-10-18 | 103 | 0 | — | — |
| 2026-10-17 | 103 | 0 | — | — |
| 2026-10-16 | 103 | 0 | — | — |
| 2026-10-15 | 103 | 0 | — | — |
| 2026-10-14 | 103 | 0 | — | — |
| 2026-10-13 | 103 | 0 | — | — |
| 2026-10-12 | 103 | 0 | — | — |
| 2026-10-11 | 103 | 0 | — | — |
| 2026-10-10 | 103 | 0 | — | — |
| 2026-10-09 | 103 | 0 | — | — |
| 2026-10-08 | 203 | 2.84 | — | — |
Top water assets
- 66Ament Lake Damreservoir
- 47BK-73-46-701spring
- 47BK-73-46-804spring
- 47BK-73-46-702spring
- 46Bk-73-46-702spring
- 46Bk-73-46-701spring
- 46Bk-73-46-803well
- 46Bk-73-46-804spring
- 45Bk-73-46-703well
- 44Bk-73-44-408well