Upper Amargosa HUC8 18090202
A 8,826 km² sub-basin of the California region in CA, NV. 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
71
Moderate
Drought index
135
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
220%
p71 of record
Water assets
2,456
215 springs · 1,794 wells
USGS gauges (4)
- AMARGOSA RV ABV CHINA RANCH WASH NR TECOPA, CA102513301 cfsp38 · normal
- AMARGOSA RV AT TECOPA, CA102513000 cfsp71 · normal
- WILLOW CK AT CHINA RANCH, CA102513350 cfsp82 · above normal
- BOREHOLE SPG CHANNEL NR TECOPA HOT SPGS, CA102512900 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 135 | 0 | 0/3 | p71 |
Top water assets
- 72Death Valley Deep Carbonate Fossil Aquiferfossil_water
- 67Beatty Washriver
- 67Amargosa Riverriver
- 67Amargosa Riverriver
- 67Amargosa Riverriver
- 67Amargosa Riverriver
- 67Amargosa Riverriver
- 67Topopah Washriver
- 67Beatty Washriver
- 67Amargosa Riverriver