Freestone · Glacial · Aysén

Río Baker

Río Baker terrain map

The Baker is Chile's largest river by volume, and it announces that fact the moment it leaves Lago General Carrera — a wide, powerful, glacial-blue flow that stayed free only after a long public fight against a major hydroelectric scheme in the 2000s.

Poor · Brown Trout
Woolly Bugger · 12-14
Closed season
Season reopens 13 November. Plenty of other water available now.
Closed — confidence not applicable today.
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp1.5°C
  • ClarityClear
Today's fly
Woolly Bugger
Woolly Bugger12-14
High-confidence seasonal pick
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp1.5°C
ClarityClear
Weather-6°C
WindNW 2 km/h
Pressure1007 hPa
Rain · recent1.8 mm
Rain · ahead5.1 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Brown Trout
Too cold
2°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.
Hatch timeline · todayQuiet day

Hatch predictions

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Sub-surface · on the nymphunder the surface

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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
Andesiops (Patagonian Olive)Hatch
3
3
3
2
2
3
3
Patagonian Mayfly (Large)Hatch
3
3
2
2
3
Smicridea (Patagonian Caddis)Hatch
3
3
3
2
2
3
Patagonian Stonefly (Large)Hatch
2
2
3
3

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Argentine Patagonian continental permit (or Chilean Sernapesca licence) required
  • Rules vary by province, National Park and reach — confirm annexes before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Río Cochrane
14 km
Brown trout · Rainbow trout
Lago General Carrera
86 km
Brown trout · Rainbow trout
Río Simpson
195 km
Brown trout · Rainbow trout
About this water

The Baker is Chile's largest river by volume, and it announces that fact the moment it leaves Lago General Carrera — a wide, powerful, glacial-blue flow that stayed free only after a long public fight against a major hydroelectric scheme in the 2000s. Big brown and rainbow trout hold in the softer seams and back channels off that main current, feeding heavily on sculpins and baitfish, and streamers fished with weight and patience are the method that consistently moves serious fish. Dry-dropper tactics have their place in the gentler side water, but this is fundamentally big-river fishing — heavy currents, real wading hazards, and water that punishes a casual approach. It's specialist, guided water, and deserves to be treated that way rather than fished on a whim.

  • Glacial
The full read · show the working · for Brown Trout · confidence 50%
How the 0 is built — score × weight = contribution
Temperature0 × 28%0.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity20 × 12%2.4
Limiting factor: Water temperature (1.5°C) is outside Brown Trout's preferred range (10–16°C)= 48
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.
The dawn and dusk windows score higher than the midday lull.
Related guides
Euro Nymphingsubsurface methods
Booking & contacts