North Fork John Day HUC8 17070202
A 4,787 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
55
Moderate
Drought index
439
Exceptional
Area in D2+
100%
39.12% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
93%
p44 of record
Water assets
152
31 springs · 8 wells
USGS gauges (1)
- NORTH FORK JOHN DAY RIVER AT MONUMENT, OR1404600087 cfsp44 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 439 | 100 | 0/1 | p44 |
Top water assets
- 76Lightning Creek — Miningspring
- 76Deer Creek — Irrigationspring
- 76Olive Creek — Miningspring
- 73Straight Creek — Irrigationspring
- 73Rudio Creek — Irrigationspring
- 69Crane Creekriver
- 69Crane Creekriver
- 69Crane Creekriver
- 69North Fork John Day Riverriver
- 69South Fork Desolation Creekriver