Niobrara Headwaters HUC8 10150002
A 3,838 km² sub-basin of the Missouri region in NE, WY. 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
36
Stressed
Drought index
398
Extreme
Area in D2+
100%
13.35% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
741
0 springs · 452 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 398 | 100 | — | — |
Top water assets
- 67Niobrara Riverriver
- 67Van Tassell Creekriver
- 67Niobrara Riverriver
- 67Whistle Creekriver
- 67Niobrara Riverriver
- 67Niobrara Riverriver
- 67Niobrara Riverriver
- 67Niobrara Riverriver
- 67Niobrara Riverriver
- 67Niobrara Riverriver