Blackfoot HUC8 17010203
A 5,990 km² sub-basin of the Pacific Northwest 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
82
Healthy
Drought index
12
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
131%
p79 of record
Water assets
963
10 springs · 196 wells
USGS gauges (3)
- Blackfoot River near Bonner MT12340000742 cfsp70 · normal
- NF Blackfoot R ab Dry Gulch nr Ovando MT12338300226 cfsp79 · above normal
- Blackfoot R ab Nevada Cr nr Helmville MT12335100217 cfsp80 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 12 | 0 | 0/3 | p79 |
Top water assets
- 69Landers Forkriver
- 69Meadow Creekriver
- 69North Fork Cottonwood Creekriver
- 69Landers Forkriver
- 69Blackfoot Riverriver
- 69Dunham Creekriver
- 69Copper Creekriver
- 69Monture Creekriver
- 69Gold Creekriver
- 69Douglas Creekriver