Chaco HUC8 14080106
A 11,846 km² sub-basin of the Upper Colorado region in AZ, 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
47
Stressed
Drought index
322
Extreme
Area in D2+
87.95%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
2,391
129 springs · 573 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 322 | 87.95 | — | — |
Top water assets
- 69Chaco Riverriver
- 69Chaco Riverriver
- 69Indian Creekriver
- 69Coyote Washriver
- 69Coyote Washriver
- 69Chaco Riverriver
- 69Chaco Riverriver
- 69Captain Tom Washriver
- 69Indian Creekriver
- 69Indian Creekriver