Freestone · Mixed · Eastern Sierra, US

Robinson Creek / Twin Lakes (Bridgeport)

Twin Lakes, Bridgeport, California

Robinson Creek and the Twin Lakes country above Bridgeport are the classic Eastern Sierra mountain-fishing scene — a freestone creek tumbling out of the Twin Lakes through the Hoover Wilderness gateway, with the lakes themselves famous for the occasional outsized brown that prowls up from deep water.

Today · A proper day on the water
Sculpin Streamer
Forecast · Today
A proper day on the water
A proper day for it. Work the seams with an upstream nymph, switch to the dry when they show.
90% projected
Today's fly
Sculpin Streamer
Sculpin Streamer
Conditions on the water · Today
Live gauge
Level
Steady
0.46 m
Water temp8.7°C
ClarityClear
Weather11°C
WindN 8 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Cool — slow
9°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown 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
Good — water clarity is right today, though insect activity could be better.
Likely species
Hatch timeline · todayPeak at 9pm

12pm(now) — Western Blue-Winged Olive

Stage: On emergersApproach: Emerger or dryActivity: 52%
Also:Black Midge47%
Peak emergence window6 food groups active

Peak activity at 9pm — Brown Dun (Brown Dun, 5 food groups active)

Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Beyond the hatch · worth watchingambient prey(1)

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

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

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

Ranked for today
Brown Trout fly box
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • General-season trout water (~late April–mid-November); creek and Twin Lakes rules/openers may differ — verify against current CDFW
  • TEMPERATURE: no live USGS water temp at 10290500 — temperature is estimated, not measured.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
  1. Twin Lakes, Bridgeport, California
  2. Terrain map of the venue
    Terrain map
About this water

Robinson Creek and the Twin Lakes country above Bridgeport are the classic Eastern Sierra mountain-fishing scene — a freestone creek tumbling out of the Twin Lakes through the Hoover Wilderness gateway, with the lakes themselves famous for the occasional outsized brown that prowls up from deep water. The creek fishes as a pretty pocket-water stream of wild and stocked browns and rainbows below the outlet, easy and accessible from the campgrounds, while the lakes are a stillwater story of their own. Being fed off the lakes the creek runs a touch steadier than a pure snowmelt freestone, but it still answers to the runoff: high and pushy in the peak melt, dropping into prime shape through summer. Fish attractors and droppers in the creek's pockets, time it for the drop after runoff, and keep half an eye on Twin Lakes for the trophy brown the area's known for.

  • Mixed
Water quality · US Clean Water Act
  • Aquatic life: Not assessed
  • Recreation: Impaired
What this classification means

Recreation: Bacteria/pathogen advisory — mind wading cuts and immersion.

EPA ATTAINS assessment unit 'Robinson Creek (Twin Lakes to Hwy 395)' (CAR6303005020020117085757), 2024 Integrated Report. Aquatic Life use: not assessed. Listed impairment causes: 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) · CAR6303005020020117085757

The full read · show the working · for Brown Trout · confidence 90%
How the 76 is built — score × weight = contribution
Temperature63 × 28%17.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity61 × 12%7.3
Conditions total= 76
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
Directions
Seasons & zones
  • Trout Last Saturday in April → 15 November
Related guides
Booking & contacts