Upper Niobrara HUC8 10150003
A 10,753 km² sub-basin of the Missouri region in NE, SD. 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
47
Stressed
Drought index
297
Severe
Area in D2+
82.28%
0.11% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
2,380
0 springs · 1,125 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 297 | 82.28 | — | — |
Top water assets
- 78NE Well G-004831well
- 76NE Well G-001839well
- 76NE Well G-002401well
- 76NE Well G-004461well
- 76NE Well G-004532well
- 76NE Well G-001619well
- 76NE Well G-004137well
- 76NE Well G-001871well
- 76NE Well G-004685well
- 76NE Well G-003647well