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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
73
Moderate
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
17%
of 6 reporting
Median flow
65%
p30 of record
Water assets
777
40 springs · 386 wells
USGS gauges (6)
- TOPAZ CANAL BLW DIV W WALKER RVR NR TOPAZ, CA1029675017 cfsp17 · below normal
- W WALKER RV BLW L WALKER RV NR COLEVILLE, CA1029600033 cfsp26 · normal
- W WALKER RV NR COLEVILLE, CA1029650040 cfsp28 · normal
- W WALKER RV NR HUDSON, NV1030000077 cfsp32 · normal
- W WALKER RV AT HOYE BRG NR WELLINGTON, NV10297500136 cfsp39 · normal
- TOPAZ CANAL BLW TOPAZ LAKE NR TOPAZ, CA10297010135 cfsp42 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 100 | 0 | 1/6 | p30 |
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