Lower San Juan HUC8 14080205
A 6,318 km² sub-basin of the Upper Colorado region in AZ, UT. 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
64
Moderate
Drought index
300
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
73%
p34 of record
Water assets
1,187
282 springs · 106 wells
USGS gauges (2)
- SAN JUAN RIVER NEAR BLUFF, UT09379500575 cfsp34 · normal
- SAN JUAN R BL PIUTE FARMS WASH NR MONUMENT VLY, UT09379700577 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 300 | 100 | 0/1 | p34 |
Top water assets
- 69Oljato Washriver
- 69Oljato Washriver
- 69Oljato Washriver
- 67San Juan R Bl Piute Farms Wash Nr Monument Vly, Utriver
- 67Oljato Washriver
- 67San Juan Riverriver
- 67Lime Creekriver
- 67Oljato Washriver
- 67San Juan Riverriver
- 67Oljato Washriver