Black Hills-Fresno HUC8 13040203
A 7,256 km² sub-basin of the Rio Grande region in MX, 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
58
Moderate
Drought index
166
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
95
4 springs · 90 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 166 | 0 | — | — |
| 2026-10-20 | 166 | 0 | — | — |
| 2026-10-19 | 166 | 0 | — | — |
| 2026-10-18 | 166 | 0 | — | — |
| 2026-10-17 | 166 | 0 | — | — |
| 2026-10-16 | 166 | 0 | — | — |
| 2026-10-15 | 166 | 0 | — | — |
| 2026-10-14 | 166 | 0 | — | — |
| 2026-10-13 | 166 | 0 | — | — |
| 2026-10-12 | 166 | 0 | — | — |
| 2026-10-11 | 166 | 0 | — | — |
| 2026-10-10 | 166 | 0 | — | — |
| 2026-10-09 | 166 | 0 | — | — |
| 2026-10-08 | 267 | 66.9 | — | — |
Top water assets
- 53Texas Water Right 62300974001well
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- 53Texas Water Right 62300926001well
- 53Texas Water Right 62300952005well
- 51Texas Water Right 62300961001well
- 51Texas Water Right 62300956001well
- 51Texas Water Right 62300987001well
- 51Texas Water Right 62300952009well
- 51Texas Water Right 62300933001well