West Walker HUC8 16050302
A 2,699 km² sub-basin of the Great Basin region in CA, NV. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
68
Moderate
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
33%
of 6 reporting
Median flow
80%
p36 of record
Water assets
777
40 springs · 386 wells
USGS gauges (6)
- TOPAZ CANAL BLW DIV W WALKER RVR NR TOPAZ, CA1029675014 cfsp18 · below normal
- W WALKER RV BLW L WALKER RV NR COLEVILLE, CA1029600028 cfsp22 · below normal
- W WALKER RV NR COLEVILLE, CA1029650038 cfsp28 · normal
- W WALKER RV NR HUDSON, NV1030000056 cfsp43 · normal
- W WALKER RV AT HOYE BRG NR WELLINGTON, NV10297500113 cfsp76 · above normal
- TOPAZ CANAL BLW TOPAZ LAKE NR TOPAZ, CA1029701099 cfsp78 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 100 | 0 | 2/6 | p36 |
| 2026-10-19 | 100 | 0 | 2/6 | p35 |
| 2026-10-18 | 100 | 0 | 3/6 | p27 |
| 2026-10-17 | 100 | 0 | 2/6 | p32 |
| 2026-10-16 | 100 | 0 | 1/6 | p31 |
| 2026-10-15 | 100 | 0 | 1/6 | p41 |
| 2026-10-14 | 100 | 0 | 1/6 | p41 |
| 2026-10-13 | 100 | 0 | 1/6 | p41 |
| 2026-10-12 | 100 | 0 | 2/6 | p35 |
| 2026-10-11 | 100 | 0 | 1/6 | p36 |
| 2026-10-10 | 100 | 0 | 1/6 | p28 |
| 2026-10-09 | 100 | 0 | 1/6 | p31 |
| 2026-10-08 | 100 | 0 | 2/6 | p32 |
| 2026-10-07 | 100 | 0 | 3/6 | p25 |
Top water assets
- 69Rock Creekriver
- 69Desert Creekriver
- 69W Walker Rv Blw L Walker Rv Nr Coleville, Cariver
- 69Slinkard Creekriver
- 69West Walker Riverriver
- 69West Walker Riverriver
- 69Topaz Canal Blw Topaz Lake Nr Topaz, Cariver
- 69Topaz Canal Blw Div W Walker Rvr Nr Topaz, Cariver
- 69Highline Ditchriver
- 69Topaz Canalriver