South Fork Owyhee HUC8 17050105
A 4,856 km² sub-basin of the Pacific Northwest region in ID, NV, OR. 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
43
Stressed
Drought index
378
Extreme
Area in D2+
100%
9.48% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
960
194 springs · 78 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 378 | 100 | — | — |
| 2026-10-17 | 378 | 100 | — | — |
| 2026-10-16 | 378 | 100 | — | — |
| 2026-10-15 | 378 | 100 | — | — |
| 2026-10-14 | 378 | 100 | — | — |
| 2026-10-13 | 378 | 100 | — | — |
| 2026-10-12 | 378 | 100 | — | — |
| 2026-10-11 | 378 | 100 | — | — |
| 2026-10-10 | 378 | 100 | — | — |
| 2026-10-09 | 378 | 100 | — | — |
| 2026-10-08 | 378 | 100 | — | — |
| 2026-10-07 | 378 | 100 | — | — |
| 2026-10-06 | 378 | 100 | — | — |
| 2026-10-05 | 378 | 100 | — | — |
Top water assets
- 80036 N39 E52 10Cbac1spring
- 76036 N39 E52 04Adbc1well
- 76036 N41 E52 17Ddcc1spring
- 76036 N40 E52 26Adcc1well
- 75Crooked Creekspring
- 74Niagra Creekspring
- 74035 N44 E52 18Cabb1spring
- 74Garat Res.9 (Unkwn Washspring
- 74036 N40 E53 19Dcbb1spring
- 74Nevada Water Rightspring