Upper Klamath Lake HUC8 18010203
A 1,875 km² sub-basin of the California 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
44
Stressed
Drought index
309
Extreme
Area in D2+
83.45%
0% exceptional (D4)
Gauges below normal
67%
of 3 reporting
Median flow
51%
p11 of record
Water assets
398
57 springs · 143 wells
USGS gauges (6)
- ANNIE SPRING NEAR CRATER LAKE, OR115030001 cfsp9 · much below normal
- A CANAL AT KLAMATH FALLS, OR11507200231 cfsp11 · below normal
- WOOD RIVER NEAR KLAMATH AGENCY, OR11504115318 cfsp46 · normal
- FOURMILE CANAL NEAR KLAMATH AGENCY, OR1150426012 cfsno long-term record
- CRYSTAL CREEK NEAR ROCKY POINT, OR1150427025 cfsno long-term record
- SEVENMILE CNL AT DIKE RD BR, NR KLAMATH AGENCY, OR11504290-126 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 309 | 83.45 | 2/3 | p11 |
Top water assets
- 76Annie Creek — Irrigationspring
- 76Wood River — Irrigationspring
- 76Waste Waters — Irrigationspring
- 76Fort Creek — Irrigationspring
- 76Annie Creek — Irrigationspring
- 73Annie Creek — Irrigation, Livestock And Domesticspring
- 73Annie Creek — Irrigationspring
- 73Annie Creek — Irrigationspring
- 69Annie Spring Near Crater Lake, Orspring
- 69Annie Creekriver