Little Missouri HUC8 08040103
A 5,438 km² sub-basin of the Lower Mississippi region in AR. 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
53
Moderate
Drought index
194
Moderate
Area in D2+
2.96%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
27%
p12 of record
Water assets
1,330
1 springs · 340 wells
USGS gauges (2)
- Little Missouri River near Langley, AR073602009 cfsp11 · below normal
- Antoine River at Antoine, AR073615000 cfsp12 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 194 | 2.96 | 2/2 | p12 |
Top water assets
- 67Narrows Damreservoir
- 66Ozan Creek Swcd Site 13reservoir
- 66Ozan Creek Swcd Site 19reservoir
- 66North Fork Ozan Wid Site 4reservoir
- 66Lake Greeson Nursery Pond Damreservoir
- 66North Fork Ozan Wid Site 1reservoir
- 66Ozan Creek Swcd Site 16reservoir
- 66Ozan Creek Swcd Site 12reservoir
- 66North Fork Ozan Wid Site 2reservoir
- 66Briar Plant Dam No 1reservoir