Cottonwood-Tijuana HUC8 18070305
A 4,452 km² sub-basin of the California region in CA, MX. 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
59
Moderate
Drought index
34
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
—
p10 of record
Water assets
277
44 springs · 187 wells
USGS gauges (1)
- CAMPO C NR CAMPO CA110125000 cfsp10 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 34 | 0 | 1/1 | p10 |
Top water assets
- 67Pine Valley Creekriver
- 67Cottonwood Creekriver
- 67Pine Valley Creekriver
- 67La Posta Creekriver
- 67Pine Valley Creekriver
- 67Potrero Creekriver
- 67Pine Valley Creekriver
- 67Morena Creekriver
- 67La Posta Creekriver
- 67Pine Valley Creekriver