Middle Little Missouri HUC8 10110203
A 5,628 km² sub-basin of the Missouri region in MT, ND. 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
40
Stressed
Drought index
358
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
100%
of 3 reporting
Median flow
8%
p12 of record
Water assets
1,836
12 springs · 328 wells
USGS gauges (3)
- DEEP CREEK NEAR AMIDON, ND063357500 cfsp10 · below normal
- LITTLE MISSOURI RIVER AT MARMARTH, ND063355001 cfsp12 · below normal
- LITTLE MISSOURI RIVER AT MEDORA, ND0633600011 cfsp21 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 358 | 100 | 3/3 | p12 |
Top water assets
- 67Little Missouri River At Medora, Ndriver
- 67Little Missouri River At Marmarth, Ndriver
- 65Williams Dam S Wreservoir
- 65Garner Creekriver
- 65Deep Creekriver
- 65Bullion Creekriver
- 65Stewart Damreservoir
- 65Deep Creekriver
- 65Little Missouri Riverriver
- 65Little Missouri Riverriver