Middle Fork John Day HUC8 17070203
A 2,052 km² sub-basin of the Pacific Northwest region in OR. 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
51
Moderate
Drought index
486
Exceptional
Area in D2+
100%
85.58% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
95%
p41 of record
Water assets
60
15 springs · 5 wells
USGS gauges (2)
- MF JOHN DAY RIVER ABV CAMP CREEK, NR GALENA, OR1404384017 cfsp40 · normal
- MIDDLE FORK JOHN DAY RIVER AT RITTER, OR1404400024 cfsp43 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 486 | 100 | 0/2 | p41 |
Top water assets
- 73Vinegar Creek — Irrigationspring
- 68Middle Fork John Day River — Irrigationspring
- 67Eightmile Creekriver
- 67Mf John Day River Abv Camp Creek, Nr Galena, Orriver
- 67Long Creekriver
- 67Davis Creekriver
- 67Middle Fork John Day Riverriver
- 67Middle Fork John Day River At Ritter, Orriver
- 67Middle Fork John Day Riverriver
- 67Middle Fork John Day Riverriver