Lake Thompson HUC8 10170103
A 1,238 km² sub-basin of the Missouri region in 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
53
Moderate
Drought index
197
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
841
1 springs · 822 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 197 | 0 | — | — |
Top water assets
- 76Norman Leewell
- 76Darrel H Andersonwell
- 76Wesley Toews Family Trustwell
- 76Rick J Or Ronald Symenswell
- 76City Of Desmetwell
- 76City Of Desmetwell
- 76Melvin W Bensonwell
- 76Page Brotherswell
- 76William Poppenwell
- 76Kingbrook Rws Incwell