Zuni HUC8 15020004
A 6,909 km² sub-basin of the Lower 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
50
Moderate
Drought index
208
Severe
Area in D2+
8.28%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
22%
p15 of record
Water assets
1,182
40 springs · 451 wells
USGS gauges (2)
- ZUNI RIVER ABV BLACK ROCK RESERVOIR, NM093869500 cfsp10 · below normal
- RIO NUTRIA NEAR RAMAH, NM093869000 cfsp20 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 208 | 8.28 | 2/2 | p15 |
Top water assets
- 70Black Rockreservoir
- 69Rio Pescadoriver
- 69Rio Pescadoriver
- 69Zuñi Riverriver
- 69Rio Pescadoriver
- 69Hardscrabble Washriver
- 69Rio Nutriariver
- 69Bosson Washriver
- 69Hardscrabble Washriver
- 69Rio Nutriariver