Gros Ventre HUC8 17040102
A 1,617 km² sub-basin of the Pacific Northwest region in 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
68
Moderate
Drought index
200
Severe
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
322%
p71 of record
Water assets
165
16 springs · 26 wells
USGS gauges (3)
- GROS VENTRE RIVER AT KELLY, WY13014500241 cfsp61 · normal
- GROS VENTRE RIVER AT ZENITH, WY1301500080 cfsp81 · above normal
- GROS VENTRE R AB UPPER SLIDE LK, NR KELLY, WY13014300119 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 200 | 0 | 0/2 | p71 |
Top water assets
- 69Gros Ventre Riverriver
- 69Sohare Creekriver
- 69Gros Ventre River At Kelly, Wyriver
- 69Bacon Creekriver
- 69South Fork Fish Creekriver
- 69West Goosewing Creekriver
- 69Gros Ventre R Ab Upper Slide Lk, Nr Kelly, Wyriver
- 69Gros Ventre River At Zenith, Wyriver
- 69North Fork Fish Creekriver
- 69Gros Ventre Riverriver