Upper Carson HUC8 16050201
A 2,482 km² sub-basin of the Great Basin region in CA, NV. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
62
Moderate
Drought index
122
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
60%
of 20 reporting
Median flow
70%
p23 of record
Water assets
2,408
73 springs · 1,762 wells
USGS gauges (24)
- UNNAMED TRIB 1 TO LEVIATHAN C AT LEVIATHAN MINE CA1030878350 cfsp10 · below normal
- LEVIATHAN MINE ADIT DRAIN NR MARKLEEVILLE CA103087840 cfsp10 · below normal
- LEVIATHAN MINE PIT FLOW NR MARKLEEVILLE CA103087850 cfsp10 · below normal
- LEVIATHAN MINE PIT JUNCTION BOX NR MARKLEEVILLE CA1030878550 cfsp10 · below normal
- UNNAMED TRIB 2 TO LEVIATHAN C AT LEVIATHAN MINE CA1030878650 cfsp10 · below normal
- 4L C NR MARKLEEVILLE CA1030878890 cfsp10 · below normal
- CLEAR CK NR CARSON CITY, NV103105002 cfsp14 · below normal
- E FK CARSON RV NR GARDNERVILLE, NV1030900049 cfsp19 · below normal
- ASH CYN CK NR CARSON CITY, NV103112002 cfsp22 · below normal
- LEVIATHAN C AB ASPEN C NR MARKLEEVILLE CA103087890 cfsp23 · below normal
- W FK CARSON RV AT WOODFORDS, CA1031000016 cfsp23 · below normal
- CARSON RV NR CARSON CITY, NV1031100039 cfsp24 · below normal
- E FK CARSON RV BLW MARKLEEVILLE CK NR MARKLEEVILLE1030820044 cfsp29 · normal
- CARSON RV AT DEER RUN RD NR CARSON CITY, NV1031140039 cfsp30 · normal
- LEVIATHAN C AB MOUNTAINEER C NR MARKLEEVILLE CA103087920 cfsp32 · normal
- LEVIATHAN C AB MINE NR MARKLEEVILLE CA103087830 cfsp33 · normal
- EAGLE VALLEY CK AT CARSON CITY, NV103113001 cfsp55 · normal
- BRYANT C BL MOUNTAINEER C NR MARKLEEVILLE CA103087942 cfsp65 · normal
- ASPEN C ABV LEVIATHAN MINE NR MARKLEEVILLE CA1030878910 cfsp66 · normal
- KINGS CYN CK NR CARSON CITY, NV103111001 cfsp73 · normal
- ASPEN C AB LEVIATHAN C NR MARKLEEVILLE CA1030878980 cfsno long-term record
- E FK CARSON RV NR DRESSLERVILLE, NV1030901046 cfsno long-term record
- INDIAN CK ABV MOUTH NR GARDNERVILLE,NV103090350 cfsno long-term record
- PINE NUT CK NR GARDNERVILLE, NV103090501 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 122 | 0 | 12/20 | p23 |
| 2026-10-18 | 122 | 0 | 10/20 | p24 |
| 2026-10-17 | 122 | 0 | 9/20 | p28 |
| 2026-10-16 | 122 | 0 | 10/20 | p27 |
| 2026-10-15 | 122 | 0 | 10/21 | p32 |
| 2026-10-14 | 122 | 0 | 8/21 | p30 |
| 2026-10-13 | 122 | 0 | 10/21 | p27 |
| 2026-10-12 | 122 | 0 | 11/21 | p22 |
| 2026-10-11 | 122 | 0 | 10/21 | p25 |
| 2026-10-10 | 122 | 0 | 11/21 | p22 |
| 2026-10-09 | 122 | 0 | 10/21 | p25 |
| 2026-10-08 | 122 | 0 | 10/21 | p25 |
| 2026-10-07 | 122 | 0 | 9/21 | p25 |
| 2026-10-06 | 122 | 0 | 7/21 | p27 |
Top water assets
- 69East Fork Carson Riverriver
- 69Bryant Creekriver
- 69Indian Creekriver
- 69Fredericksburg Ditchriver
- 69E Fk Carson Rv Blw Markleeville Ck Nr Markleevilleriver
- 69E Fk Carson Rv Nr Gardnerville, Nvriver
- 69Bryant C Bl Mountaineer C Nr Markleeville Cariver
- 69Indian Creekriver
- 69W Fk Carson Rv At Woodfords, Cariver
- 69East Fork Carson Riverriver