Freestone · Mixed · Northern California

East Carson River

East Carson River terrain map

An eastern-slope Sierra freestone draining out of Alpine County toward Nevada — the same kind of high-country snowmelt river as the Truckee, and a realistic long-day or overnight run from the Bay Area rather than a casual day trip.

Marginal · Rainbow Trout
Parachute Adams · 12-18
Marginallive now
Slow going — pick your moments
River steady at a fishable height. Slow going — pick your moments and do not force it.
90% confidence
What moved it
  • Level0.77 mLast reading 10h ago
  • Water temp18.2°C
  • ClarityClear
Today's fly
Parachute Adams
Parachute Adams12-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.77 m
Last reading 10h ago
Water temp18.2°C
ClarityClear
Weather19°C
WindSW 8 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead0.1 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for Rainbow Trout
Warm — slow
18°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Water at 18.2°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
1
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2
American March BrownHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • CDFW Sierra district season (last Saturday in April through 15 November); verify reach-specific rules and the CA/NV state line, which the river crosses.
What's coming
Plan ahead
5-day outlook
Water here around 18°C. Nothing cooler within range — carry a thermometer.
About this water

An eastern-slope Sierra freestone draining out of Alpine County toward Nevada — the same kind of high-country snowmelt river as the Truckee, and a realistic long-day or overnight run from the Bay Area rather than a casual day trip. Heavy spring runoff, then a long, generous summer-into-autumn season once the river drops and clears. A mix of stocked and wild rainbows and browns. Standard western freestone tactics: attractor dries, hoppers late summer, and nymphs through the runs.

  • Mixed
Water quality · US Clean Water Act
  • Aquatic life: Impaired
What this classification means

EPA ATTAINS assessment unit 'Carson River, East Fork' (CAR6321007219980803164808), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Nutrients, Oxygen Depletion, Toxic Inorganics, Turbidity, Pathogens. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · CAR6321007219980803164808

The full read · show the working · for Rainbow Trout · confidence 90%
How the 39 is built — score × weight = contribution
Temperature93 × 28%26.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time70 × 13%9.1
Pressure75 × 7%5.3
Insect activity68 × 12%8.2
Conditions total= 82
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • TroutLast Saturday in April → 15 November
Related guides
Euro Nymphingsubsurface methods
Booking & contacts