Upper Green-Flaming Gorge Reservoir HUC8 14040106
A 6,476 km² sub-basin of the Upper Colorado region in CO, UT, 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
62
Moderate
Drought index
296
Severe
Area in D2+
96.4%
0% exceptional (D4)
Gauges below normal
14%
of 7 reporting
Median flow
119%
p64 of record
Water assets
1,785
241 springs · 52 wells
USGS gauges (7)
- GREEN RIVER NEAR GREEN RIVER, WY09217000603 cfsp13 · below normal
- MIDDLE FORK BEAVER CREEK NEAR LONETREE, WYO.0922650010 cfsp28 · normal
- Henrys Fork near Burntfork, WY0922800019 cfsp55 · normal
- HENRYS FORK NEAR MANILA, UT0922950027 cfsp64 · normal
- GREEN RIVER AT OURAY, UTAH092724002,070 cfsp67 · normal
- GREEN RIVER NEAR JENSEN, UT092610002,150 cfsp68 · normal
- GREEN RIVER NEAR GREENDALE, UT092345002,600 cfsp80 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 296 | 96.4 | 1/7 | p64 |
Top water assets
- 78Lodge Pole Cr (Connor Basin Lateral) — Diospwell
- 69Green Riverriver
- 69Carter Creekriver
- 69Green Riverriver
- 69Henrys Forkriver
- 69Red Creekriver
- 69Green Riverriver
- 69Green Riverriver
- 69Henrys Fork Near Manila, Utriver
- 69Green Riverriver