Middle Niobrara HUC8 10150004
A 9,809 km² sub-basin of the Missouri region in NE, SD. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
72
Moderate
Drought index
77
Abnormally dry
Area in D2+
0.03%
0% exceptional (D4)
Gauges below normal
33%
of 3 reporting
Median flow
97%
p44 of record
Water assets
2,448
2 springs · 1,075 wells
USGS gauges (3)
- Niobrara River at Mariaville, Nebr.064637201,100 cfsp23 · below normal
- Niobrara River near Sparks, Nebr.06461500637 cfsp44 · normal
- Long Pine Creek near Riverview, Nebr.06463500154 cfsp58 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 77 | 0.03 | 1/3 | p44 |
| 2026-10-20 | 77 | 0.03 | 1/3 | p51 |
| 2026-10-19 | 77 | 0.03 | 0/3 | p55 |
| 2026-10-18 | 77 | 0.03 | 1/3 | p51 |
| 2026-10-17 | 77 | 0.03 | 1/3 | p53 |
| 2026-10-16 | 77 | 0.03 | 0/3 | p46 |
| 2026-10-15 | 77 | 0.03 | 1/3 | p41 |
| 2026-10-14 | 77 | 0.03 | 1/3 | p34 |
| 2026-10-13 | 77 | 0.03 | 0/3 | p34 |
| 2026-10-12 | 77 | 0.03 | 0/3 | p38 |
| 2026-10-11 | 77 | 0.03 | 0/3 | p33 |
| 2026-10-10 | 77 | 0.03 | 0/3 | p44 |
| 2026-10-09 | 77 | 0.03 | 1/3 | p41 |
| 2026-10-08 | 77 | 0.03 | 1/3 | p45 |
Top water assets
- 76Robert Tinantwell
- 76David Danielskiwell
- 76Lawrence Markuswell
- 76John L Markuswell
- 76Vernon A & Rita R Ortmeier Trustwell
- 76Conrad Schelhaaswell
- 76NE Well G-002656well
- 76Clyde E Brewerwell
- 76Danielski Harvesting & Farmingwell
- 76Clyde E Brewerwell