Upper Belle Fourche HUC8 10120201
A 7,608 km² sub-basin of the Missouri region in SD, WY. 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
57
Moderate
Drought index
395
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
76%
p44 of record
Water assets
2,954
11 springs · 564 wells
USGS gauges (1)
- BELLE FOURCHE RIVER BELOW MOORCROFT, WY064265001 cfsp44 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 395 | 100 | 0/1 | p44 |
Top water assets
- 76Minnelusa Formation Fossil Aquifer — Powder River Basinfossil_water
- 69Soldier Creekriver
- 69Soldier Creekriver
- 69Soldier Creekriver
- 69Soldier Creekriver
- 69Beaver Creekriver
- 69Houston Creekriver
- 69Inyan Kara Creekriver
- 69Beaver Creekriver
- 69Soldier Creekriver