Upper Sevier HUC8 16030001
A 3,116 km² sub-basin of the Great Basin region in UT. 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
49
Stressed
Drought index
234
Severe
Area in D2+
32.29%
0% exceptional (D4)
Gauges below normal
100%
of 3 reporting
Median flow
47%
p13 of record
Water assets
1,383
409 springs · 177 wells
USGS gauges (3)
- SEVIER RIVER NEAR KINGSTON, UT101835008 cfsp13 · below normal
- MAMMOTH CREEK ABV WEST HATCH DITCH, NEAR HATCH, UT1017345010 cfsp13 · below normal
- SEVIER RIVER AT HATCH, UT1017450049 cfsp23 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 234 | 32.29 | 3/3 | p13 |
Top water assets
- 69Panguitch Creekriver
- 69Panguitch Creekriver
- 69Mammoth Creekriver
- 69Swains Creekriver
- 69Mammoth Creekriver
- 69Panguitch Creekriver
- 69Mammoth Creek Abv West Hatch Ditch, Near Hatch, Utriver
- 69Sevier River Near Kingston, Utriver
- 69Sevier Riverriver
- 69Ipson Creekriver