Upper Little Colorado HUC8 15020002
A 4,200 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
49
Stressed
Drought index
200
Severe
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
75%
of 4 reporting
Median flow
0%
p10 of record
Water assets
1,230
70 springs · 611 wells
USGS gauges (4)
- LITTLE COLORADO RIVER BELOW SALADO SPRINGS, AZ093857000 cfsp0 · much below normal
- LITTLE COLORADO RVR ABV ZION RES. NR ST. JOHNS, AZ093860300 cfsp10 · below normal
- LITTLE COLORADO RIVER AT WOODRUFF, AZ093945001 cfsp10 · below normal
- LITTLE COLORADO RVR BLW ZION RES. NR ST JOHNS, AZ0938630036 cfsp100 · much above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 200 | 0 | 3/4 | p10 |
Top water assets
- 69Little Colorado Riverriver
- 69Big Hollow Washriver
- 69Milky Washriver
- 69Mineral Creekriver
- 69Little Colorado Riverriver
- 69Little Colorado Riverriver
- 69Little Colorado Riverriver
- 69Vernon Creekriver
- 69Vernon Creekriver
- 69Mineral Creekriver