Lower Belle Fourche HUC8 10120202
A 8,408 km² sub-basin of the Missouri region in MT, SD, WY. 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
46
Stressed
Drought index
264
Severe
Area in D2+
62.54%
0% exceptional (D4)
Gauges below normal
70%
of 10 reporting
Median flow
32%
p7 of record
Water assets
5,129
49 springs · 2,236 wells
USGS gauges (11)
- WHITEWOOD CREEK ABOVE VALE, SD064361980 cfsp0 · much below normal
- WHITEWOOD CREEK NEAR WHITEWOOD, SD064361901 cfsp2 · much below normal
- BELLE FOURCHE RIVER NEAR ELM SPRINGS, SD0643800014 cfsp5 · much below normal
- WHITEWOOD CREEK AT DEADWOOD, SD064361705 cfsp6 · much below normal
- BEAR BUTTE CREEK NEAR DEADWOOD, SD064370201 cfsp6 · much below normal
- WHITEWOOD CREEK ABOVE WHITEWOOD, SD064361803 cfsp7 · much below normal
- BELLE FOURCHE RIVER NEAR STURGIS, SD0643700036 cfsp13 · below normal
- BELLE FOURCHE RIVER AT WY-SD STATE LINE0642850015 cfsp29 · normal
- INLET CANAL ABOVE BELLE FOURCHE RESERVOIR, SD06434505143 cfsp33 · normal
- BELLE FOURCHE RIVER NEAR FRUITDALE, SD064360008 cfsp51 · normal
- WHITETAIL CREEK AT LEAD, SD0643615620 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 264 | 62.54 | 7/10 | p7 |
| 2026-10-20 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-19 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-18 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-17 | 264 | 62.54 | 7/10 | p7 |
| 2026-10-16 | 264 | 62.54 | 9/10 | p6 |
| 2026-10-15 | 264 | 62.54 | 8/10 | p7 |
| 2026-10-14 | 264 | 62.54 | 8/10 | p7 |
| 2026-10-13 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-12 | 264 | 62.54 | 9/10 | p6 |
| 2026-10-11 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-10 | 264 | 62.54 | 7/10 | p6 |
| 2026-10-09 | 264 | 62.54 | 7/10 | p7 |
| 2026-10-08 | 264 | 62.54 | 7/10 | p7 |
Top water assets
- 78Davis Ranches Incriver
- 78W R Sanfordriver
- 78Olin M Matkinsriver
- 78Finn Livestock Companywell
- 78John C Schaeferriver
- 76Brothers Jarvisriver
- 76S G Sheffieldriver
- 76Doug R Eichlerriver
- 76Louis Barberriver
- 76Rodney Winklerriver