Alamosa-Trinchera HUC8 13010002
A 6,576 km² sub-basin of the Rio Grande region in CO, NM. 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
38
Stressed
Drought index
423
Exceptional
Area in D2+
100%
31.57% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
2,900
9 springs · 658 wells
USGS gauges (1)
- RIO GRANDE NEAR LOBATOS, CO0825150069 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 423 | 100 | — | — |
Top water assets
- 69Hot Creekriver
- 69Alamosa Riverriver
- 69Alamosa Riverriver
- 69Rio Granderiver
- 69Rio Granderiver
- 69Ventero Creekriver
- 69San Francisco Creekriver
- 69Monte Vista Canalriver
- 69Sangre de Cristo Creekriver
- 69Pinos Creekriver