Little Colorado Headwaters HUC8 15020001
A 2,086 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
51
Moderate
Drought index
227
Severe
Area in D2+
27.36%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
95%
p41 of record
Water assets
1,011
34 springs · 297 wells
USGS gauges (2)
- LITTLE COLORADO R ABV LYMAN LAKE NR ST. JOHNS, AZ093840000 cfsp2 · much below normal
- LITTLE COLORADO RIVER AT GREER, AZ0938340018 cfsp81 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 227 | 27.36 | 1/2 | p41 |
Top water assets
- 69Coyote Creekriver
- 69Coyote Creekriver
- 69Hall Creekriver
- 69Nutrioso Creekriver
- 69Carnero Creekriver
- 69Hog Wallowreservoir
- 69Little Colorado Riverriver
- 69Water Canyon Creekriver
- 69West Fork Little Colorado Riverriver
- 69Coyote Creekriver