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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
48
Stressed
Drought index
267
Severe
Area in D2+
67.14%
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 |
|---|---|---|---|---|
| 2026-09-07 | 267 | 67.14 | — | — |
Top water assets
- 53Texas Water Right 62300974001well
- 53Texas Water Right 62300966001well
- 53Texas Water Right 62300946001well
- 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