Keya Paha HUC8 10150006
A 4,464 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
74
Moderate
Drought index
128
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
108%
p50 of record
Water assets
2,561
18 springs · 1,578 wells
USGS gauges (3)
- KEYA PAHA RIVER NEAR KEYAPAHA, SD0646410013 cfsp36 · normal
- KEYA PAHA RIVER AT WEWELA, SD0646450036 cfsp63 · normal
- ANTELOPE CR NEAR MISSION, SD064639001 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 128 | 0 | 0/2 | p50 |
Top water assets
- 76Bobbi Reaglewell
- 76John Ishmaelwell
- 76John F Knechtwell
- 76William Heeseriver
- 76Clay & Jim Kaiserwell
- 76Don L Linebackwell
- 76Bobbi Reaglewell
- 76Mission Farmswell
- 76John H. Neissriver
- 76Peter & Rosa Clausenriver