Upper Colorado HUC8 12080008
A 3,572 km² sub-basin of the Texas-Gulf region in 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
54
Moderate
Drought index
158
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
0%
p10 of record
Water assets
640
27 springs · 75 wells
USGS gauges (2)
- Colorado Rv abv Silver, TX081238500 cfsp10 · below normal
- Colorado Rv at Robert Lee, TX081240000 cfsp10 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 158 | 0 | 2/2 | p10 |
Top water assets
- 67Oak Creekriver
- 67Big Silver Creekriver
- 67Big Silver Creekriver
- 67Big Silver Creekriver
- 67Yellow Wolf Creekriver
- 67Oak Creekriver
- 67Robert Lee Damreservoir
- 67Big Silver Creekriver
- 67Big Silver Creekriver
- 67Oak Creekriver