Stillwater HUC8 10070005
A 2,764 km² sub-basin of the Missouri region in MT. 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
55
Moderate
Drought index
212
Severe
Area in D2+
11.96%
0% exceptional (D4)
Gauges below normal
67%
of 3 reporting
Median flow
73%
p23 of record
Water assets
756
27 springs · 94 wells
USGS gauges (3)
- West Rosebud Creek near Roscoe MT0620405088 cfsp23 · below normal
- Stillwater River near Absarokee, MT06205000414 cfsp23 · below normal
- W Rosebud Cr at Emerald Lk Campground nr Roscoe0620407090 cfsp25 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 212 | 11.96 | 2/3 | p23 |
Top water assets
- 69East Rosebud Creekriver
- 69East Rosebud Creekriver
- 69Fishtail Creekriver
- 69Little Rocky Creekriver
- 69East Rosebud Creekriver
- 69East Rosebud Creekriver
- 69West Rosebud Creek Near Roscoe Mtriver
- 69East Rosebud Creekriver
- 69W Rosebud Cr At Emerald Lk Campground Nr Roscoeriver
- 69East Rosebud Creekriver